# Autogenerated from a Treetop grammar. Edits may be lost.


#encoding: utf-8
module N3Grammer
  include Treetop::Runtime

  def root
    @root ||= :document
  end

  def _nt_document
    start_index = index
    if node_cache[:document].has_key?(index)
      cached = node_cache[:document][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_statements

    node_cache[:document][start_index] = r0

    r0
  end

  module Barename0
    def barename_start
      elements[0]
    end

  end

  def _nt_barename
    start_index = index
    if node_cache[:barename].has_key?(index)
      cached = node_cache[:barename][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    r1 = _nt_barename_start
    s0 << r1
    if r1
      s2, i2 = [], index
      loop do
        r3 = _nt_barename_tail
        if r3
          s2 << r3
        else
          break
        end
      end
      r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
      s0 << r2
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Barename0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:barename][start_index] = r0

    r0
  end

  def _nt_barename_start
    start_index = index
    if node_cache[:barename_start].has_key?(index)
      cached = node_cache[:barename_start][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    if has_terminal?('\G[A-Z_a-z\\p{Alpha}]', true, index)
      r0 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      r0 = nil
    end

    node_cache[:barename_start][start_index] = r0

    r0
  end

  def _nt_barename_tail
    start_index = index
    if node_cache[:barename_tail].has_key?(index)
      cached = node_cache[:barename_tail][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    r1 = _nt_barename_start
    if r1
      r0 = r1
    else
      if has_terminal?('\G[-0-9\\\\]', true, index)
        r2 = true
        @index += 1
      else
        r2 = nil
      end
      if r2
        r0 = r2
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:barename_tail][start_index] = r0

    r0
  end

  def _nt_hexdigit
    start_index = index
    if node_cache[:hexdigit].has_key?(index)
      cached = node_cache[:hexdigit][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    if has_terminal?('\G[0-9a-fA-F]', true, index)
      r0 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      r0 = nil
    end

    node_cache[:hexdigit][start_index] = r0

    r0
  end

  module Integer0
  end

  def _nt_integer
    start_index = index
    if node_cache[:integer].has_key?(index)
      cached = node_cache[:integer][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?('\G[+-]', true, index)
      r2 = true
      @index += 1
    else
      r2 = nil
    end
    if r2
      r1 = r2
    else
      r1 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r1
    if r1
      s3, i3 = [], index
      loop do
        if has_terminal?('\G[0-9]', true, index)
          r4 = true
          @index += 1
        else
          r4 = nil
        end
        if r4
          s3 << r4
        else
          break
        end
      end
      if s3.empty?
        @index = i3
        r3 = nil
      else
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      end
      s0 << r3
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Integer0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:integer][start_index] = r0

    r0
  end

  module BarenameCsl0
    def barename
      elements[1]
    end

    def barename_csl_tail
      elements[2]
    end
  end

  def _nt_barename_csl
    start_index = index
    if node_cache[:barename_csl].has_key?(index)
      cached = node_cache[:barename_csl][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    s2, i2 = [], index
    loop do
      r3 = _nt_space
      if r3
        s2 << r3
      else
        break
      end
    end
    if s2.empty?
      @index = i2
      r2 = nil
    else
      r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    end
    s1 << r2
    if r2
      r4 = _nt_barename
      s1 << r4
      if r4
        r5 = _nt_barename_csl_tail
        s1 << r5
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(BarenameCsl0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      if has_terminal?("", false, index)
        r6 = instantiate_node(SyntaxNode,input, index...(index + 0))
        @index += 0
      else
        terminal_parse_failure("")
        r6 = nil
      end
      if r6
        r0 = r6
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:barename_csl][start_index] = r0

    r0
  end

  module BarenameCslTail0
    def barename
      elements[3]
    end

    def barename_csl_tail
      elements[5]
    end
  end

  def _nt_barename_csl_tail
    start_index = index
    if node_cache[:barename_csl_tail].has_key?(index)
      cached = node_cache[:barename_csl_tail][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    s2, i2 = [], index
    loop do
      r3 = _nt_space
      if r3
        s2 << r3
      else
        break
      end
    end
    r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
    s1 << r2
    if r2
      if has_terminal?(",", false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure(",")
        r4 = nil
      end
      s1 << r4
      if r4
        s5, i5 = [], index
        loop do
          r6 = _nt_space
          if r6
            s5 << r6
          else
            break
          end
        end
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        s1 << r5
        if r5
          r7 = _nt_barename
          s1 << r7
          if r7
            s8, i8 = [], index
            loop do
              r9 = _nt_space
              if r9
                s8 << r9
              else
                break
              end
            end
            r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
            s1 << r8
            if r8
              r10 = _nt_barename_csl_tail
              s1 << r10
            end
          end
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(BarenameCslTail0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      if has_terminal?("", false, index)
        r11 = instantiate_node(SyntaxNode,input, index...(index + 0))
        @index += 0
      else
        terminal_parse_failure("")
        r11 = nil
      end
      if r11
        r0 = r11
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:barename_csl_tail][start_index] = r0

    r0
  end

  module Boolean0
  end

  def _nt_boolean
    start_index = index
    if node_cache[:boolean].has_key?(index)
      cached = node_cache[:boolean][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    s1, i1 = [], index
    loop do
      if has_terminal?("@", false, index)
        r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("@")
        r2 = nil
      end
      if r2
        s1 << r2
      else
        break
      end
    end
    r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    s0 << r1
    if r1
      i3 = index
      if has_terminal?("true", false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 4))
        @index += 4
      else
        terminal_parse_failure("true")
        r4 = nil
      end
      if r4
        r3 = r4
      else
        if has_terminal?("false", false, index)
          r5 = instantiate_node(SyntaxNode,input, index...(index + 5))
          @index += 5
        else
          terminal_parse_failure("false")
          r5 = nil
        end
        if r5
          r3 = r5
        else
          @index = i3
          r3 = nil
        end
      end
      s0 << r3
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Boolean0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:boolean][start_index] = r0

    r0
  end

  module Comment0
  end

  module Comment1
  end

  def _nt_comment
    start_index = index
    if node_cache[:comment].has_key?(index)
      cached = node_cache[:comment][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?('#', false, index)
      r1 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure('#')
      r1 = nil
    end
    s0 << r1
    if r1
      s2, i2 = [], index
      loop do
        i3, s3 = index, []
        i4 = index
        if has_terminal?('\G[\\n\\r]', true, index)
          r5 = true
          @index += 1
        else
          r5 = nil
        end
        if r5
          r4 = nil
        else
          @index = i4
          r4 = instantiate_node(SyntaxNode,input, index...index)
        end
        s3 << r4
        if r4
          if index < input_length
            r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure("any character")
            r6 = nil
          end
          s3 << r6
        end
        if s3.last
          r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
          r3.extend(Comment0)
        else
          @index = i3
          r3 = nil
        end
        if r3
          s2 << r3
        else
          break
        end
      end
      r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
      s0 << r2
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Comment1)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:comment][start_index] = r0

    r0
  end

  module Declaration0
    def barename_csl
      elements[2]
    end
  end

  module Declaration1
    def declaration; true; end
    def keywords; true;end
  end

  module Declaration2
    def explicituri
      elements[3]
    end
  end

  module Declaration3
    def declaration; true; end
    def base; true; end
  end

  module Declaration4
    def nprefix
      elements[3]
    end

    def explicituri
      elements[6]
    end
  end

  module Declaration5
    def declaration; true; end
  end

  def _nt_declaration
    start_index = index
    if node_cache[:declaration].has_key?(index)
      cached = node_cache[:declaration][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    if has_terminal?("@", false, index)
      r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("@")
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      if has_terminal?('keywords', false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 8))
        @index += 8
      else
        terminal_parse_failure('keywords')
        r4 = nil
      end
      s1 << r4
      if r4
        r5 = _nt_barename_csl
        s1 << r5
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Declaration0)
      r1.extend(Declaration1)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i6, s6 = index, []
      if has_terminal?("@", false, index)
        r8 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("@")
        r8 = nil
      end
      if r8
        r7 = r8
      else
        r7 = instantiate_node(SyntaxNode,input, index...index)
      end
      s6 << r7
      if r7
        if has_terminal?('base', false, index)
          r9 = instantiate_node(SyntaxNode,input, index...(index + 4))
          @index += 4
        else
          terminal_parse_failure('base')
          r9 = nil
        end
        s6 << r9
        if r9
          s10, i10 = [], index
          loop do
            r11 = _nt_space
            if r11
              s10 << r11
            else
              break
            end
          end
          if s10.empty?
            @index = i10
            r10 = nil
          else
            r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
          end
          s6 << r10
          if r10
            r12 = _nt_explicituri
            s6 << r12
          end
        end
      end
      if s6.last
        r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
        r6.extend(Declaration2)
        r6.extend(Declaration3)
      else
        @index = i6
        r6 = nil
      end
      if r6
        r0 = r6
      else
        i13, s13 = index, []
        if has_terminal?("@", false, index)
          r15 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("@")
          r15 = nil
        end
        if r15
          r14 = r15
        else
          r14 = instantiate_node(SyntaxNode,input, index...index)
        end
        s13 << r14
        if r14
          if has_terminal?('prefix', false, index)
            r16 = instantiate_node(SyntaxNode,input, index...(index + 6))
            @index += 6
          else
            terminal_parse_failure('prefix')
            r16 = nil
          end
          s13 << r16
          if r16
            s17, i17 = [], index
            loop do
              r18 = _nt_space
              if r18
                s17 << r18
              else
                break
              end
            end
            if s17.empty?
              @index = i17
              r17 = nil
            else
              r17 = instantiate_node(SyntaxNode,input, i17...index, s17)
            end
            s13 << r17
            if r17
              r20 = _nt_nprefix
              if r20
                r19 = r20
              else
                r19 = instantiate_node(SyntaxNode,input, index...index)
              end
              s13 << r19
              if r19
                if has_terminal?(':', false, index)
                  r21 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure(':')
                  r21 = nil
                end
                s13 << r21
                if r21
                  s22, i22 = [], index
                  loop do
                    r23 = _nt_space
                    if r23
                      s22 << r23
                    else
                      break
                    end
                  end
                  r22 = instantiate_node(SyntaxNode,input, i22...index, s22)
                  s13 << r22
                  if r22
                    r24 = _nt_explicituri
                    s13 << r24
                  end
                end
              end
            end
          end
        end
        if s13.last
          r13 = instantiate_node(SyntaxNode,input, i13...index, s13)
          r13.extend(Declaration4)
          r13.extend(Declaration5)
        else
          @index = i13
          r13 = nil
        end
        if r13
          r0 = r13
        else
          @index = i0
          r0 = nil
        end
      end
    end

    node_cache[:declaration][start_index] = r0

    r0
  end

  module Decimal0
    def integer
      elements[0]
    end

  end

  def _nt_decimal
    start_index = index
    if node_cache[:decimal].has_key?(index)
      cached = node_cache[:decimal][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    r1 = _nt_integer
    s0 << r1
    if r1
      if has_terminal?('.', false, index)
        r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure('.')
        r2 = nil
      end
      s0 << r2
      if r2
        s3, i3 = [], index
        loop do
          if has_terminal?('\G[0-9]', true, index)
            r4 = true
            @index += 1
          else
            r4 = nil
          end
          if r4
            s3 << r4
          else
            break
          end
        end
        if s3.empty?
          @index = i3
          r3 = nil
        else
          r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
        end
        s0 << r3
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Decimal0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:decimal][start_index] = r0

    r0
  end

  module Double0
    def decimal
      elements[0]
    end

    def integer
      elements[2]
    end
  end

  def _nt_double
    start_index = index
    if node_cache[:double].has_key?(index)
      cached = node_cache[:double][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    r1 = _nt_decimal
    s0 << r1
    if r1
      if has_terminal?('\G[eE]', true, index)
        r2 = true
        @index += 1
      else
        r2 = nil
      end
      s0 << r2
      if r2
        r3 = _nt_integer
        s0 << r3
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Double0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:double][start_index] = r0

    r0
  end

  module Existential0
    def symbol_csl
      elements[3]
    end
  end

  def _nt_existential
    start_index = index
    if node_cache[:existential].has_key?(index)
      cached = node_cache[:existential][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?("@", false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("@")
      r2 = nil
    end
    if r2
      r1 = r2
    else
      r1 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r1
    if r1
      if has_terminal?("forSome", false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 7))
        @index += 7
      else
        terminal_parse_failure("forSome")
        r3 = nil
      end
      s0 << r3
      if r3
        s4, i4 = [], index
        loop do
          r5 = _nt_space
          if r5
            s4 << r5
          else
            break
          end
        end
        if s4.empty?
          @index = i4
          r4 = nil
        else
          r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
        end
        s0 << r4
        if r4
          r6 = _nt_symbol_csl
          s0 << r6
        end
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Existential0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:existential][start_index] = r0

    r0
  end

  module Explicituri0
    def uri
      elements[1]
    end

  end

  def _nt_explicituri
    start_index = index
    if node_cache[:explicituri].has_key?(index)
      cached = node_cache[:explicituri][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?("<", false, index)
      r1 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("<")
      r1 = nil
    end
    s0 << r1
    if r1
      r2 = _nt_URI_Reference
      s0 << r2
      if r2
        if has_terminal?(">", false, index)
          r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(">")
          r3 = nil
        end
        s0 << r3
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Explicituri0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:explicituri][start_index] = r0

    r0
  end

  module Expression0
    def pathitem
      elements[0]
    end

    def expression
      elements[3]
    end
  end

  module Expression1
    def pathitem
      elements[0]
    end

    def expression
      elements[4]
    end
  end

  module Expression2
    def pathitem
      elements[0]
    end

    def expression
      elements[4]
    end
  end

  module Expression3
    def reverse; true; end
  end

  def _nt_expression
    start_index = index
    if node_cache[:expression].has_key?(index)
      cached = node_cache[:expression][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_pathitem
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s1 << r3
      if r3
        if has_terminal?('.', false, index)
          r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure('.')
          r5 = nil
        end
        s1 << r5
        if r5
          r6 = _nt_expression
          s1 << r6
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Expression0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i7, s7 = index, []
      r8 = _nt_pathitem
      s7 << r8
      if r8
        s9, i9 = [], index
        loop do
          r10 = _nt_space
          if r10
            s9 << r10
          else
            break
          end
        end
        r9 = instantiate_node(SyntaxNode,input, i9...index, s9)
        s7 << r9
        if r9
          if has_terminal?("!", false, index)
            r11 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure("!")
            r11 = nil
          end
          s7 << r11
          if r11
            s12, i12 = [], index
            loop do
              r13 = _nt_space
              if r13
                s12 << r13
              else
                break
              end
            end
            r12 = instantiate_node(SyntaxNode,input, i12...index, s12)
            s7 << r12
            if r12
              r14 = _nt_expression
              s7 << r14
            end
          end
        end
      end
      if s7.last
        r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
        r7.extend(Expression1)
      else
        @index = i7
        r7 = nil
      end
      if r7
        r0 = r7
      else
        i15, s15 = index, []
        r16 = _nt_pathitem
        s15 << r16
        if r16
          s17, i17 = [], index
          loop do
            r18 = _nt_space
            if r18
              s17 << r18
            else
              break
            end
          end
          r17 = instantiate_node(SyntaxNode,input, i17...index, s17)
          s15 << r17
          if r17
            if has_terminal?("^", false, index)
              r19 = instantiate_node(SyntaxNode,input, index...(index + 1))
              @index += 1
            else
              terminal_parse_failure("^")
              r19 = nil
            end
            s15 << r19
            if r19
              s20, i20 = [], index
              loop do
                r21 = _nt_space
                if r21
                  s20 << r21
                else
                  break
                end
              end
              r20 = instantiate_node(SyntaxNode,input, i20...index, s20)
              s15 << r20
              if r20
                r22 = _nt_expression
                s15 << r22
              end
            end
          end
        end
        if s15.last
          r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
          r15.extend(Expression2)
          r15.extend(Expression3)
        else
          @index = i15
          r15 = nil
        end
        if r15
          r0 = r15
        else
          r23 = _nt_pathitem
          if r23
            r0 = r23
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end

    node_cache[:expression][start_index] = r0

    r0
  end

  module Language0
  end

  module Language1
  end

  def _nt_language
    start_index = index
    if node_cache[:language].has_key?(index)
      cached = node_cache[:language][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    s1, i1 = [], index
    loop do
      if has_terminal?('\G[a-zA-Z]', true, index)
        r2 = true
        @index += 1
      else
        r2 = nil
      end
      if r2
        s1 << r2
      else
        break
      end
    end
    if s1.empty?
      @index = i1
      r1 = nil
    else
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    end
    s0 << r1
    if r1
      s3, i3 = [], index
      loop do
        i4, s4 = index, []
        if has_terminal?("-", false, index)
          r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("-")
          r5 = nil
        end
        s4 << r5
        if r5
          s6, i6 = [], index
          loop do
            if has_terminal?('\G[a-zA-Z0-9]', true, index)
              r7 = true
              @index += 1
            else
              r7 = nil
            end
            if r7
              s6 << r7
            else
              break
            end
          end
          if s6.empty?
            @index = i6
            r6 = nil
          else
            r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          end
          s4 << r6
        end
        if s4.last
          r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
          r4.extend(Language0)
        else
          @index = i4
          r4 = nil
        end
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s0 << r3
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Language1)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:language][start_index] = r0

    r0
  end

  module Literal0
    def symbol
      elements[1]
    end
  end

  module Literal1
    def language
      elements[1]
    end
  end

  module Literal2
  end

  def _nt_literal
    start_index = index
    if node_cache[:literal].has_key?(index)
      cached = node_cache[:literal][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    i1 = index
    r2 = _nt_string_single
    if r2
      r1 = r2
    else
      r3 = _nt_string_multi
      if r3
        r1 = r3
      else
        @index = i1
        r1 = nil
      end
    end
    s0 << r1
    if r1
      i5 = index
      i6, s6 = index, []
      if has_terminal?("^^", false, index)
        r7 = instantiate_node(SyntaxNode,input, index...(index + 2))
        @index += 2
      else
        terminal_parse_failure("^^")
        r7 = nil
      end
      s6 << r7
      if r7
        r8 = _nt_symbol
        s6 << r8
      end
      if s6.last
        r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
        r6.extend(Literal0)
      else
        @index = i6
        r6 = nil
      end
      if r6
        r5 = r6
      else
        i9, s9 = index, []
        if has_terminal?("@", false, index)
          r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("@")
          r10 = nil
        end
        s9 << r10
        if r10
          r11 = _nt_language
          s9 << r11
        end
        if s9.last
          r9 = instantiate_node(SyntaxNode,input, i9...index, s9)
          r9.extend(Literal1)
        else
          @index = i9
          r9 = nil
        end
        if r9
          r5 = r9
        else
          @index = i5
          r5 = nil
        end
      end
      if r5
        r4 = r5
      else
        r4 = instantiate_node(SyntaxNode,input, index...index)
      end
      s0 << r4
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Literal2)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:literal][start_index] = r0

    r0
  end

  def _nt_localname
    start_index = index
    if node_cache[:localname].has_key?(index)
      cached = node_cache[:localname][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_barename

    node_cache[:localname][start_index] = r0

    r0
  end

  def _nt_nprefix
    start_index = index
    if node_cache[:nprefix].has_key?(index)
      cached = node_cache[:nprefix][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_barename

    node_cache[:nprefix][start_index] = r0

    r0
  end

  module Numericliteral0
    def numericliteral; "double"; end
  end

  module Numericliteral1
    def numericliteral; "decimal"; end
  end

  module Numericliteral2
    def numericliteral; "integer"; end
  end

  def _nt_numericliteral
    start_index = index
    if node_cache[:numericliteral].has_key?(index)
      cached = node_cache[:numericliteral][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    r1 = _nt_double
    r1.extend(Numericliteral0)
    if r1
      r0 = r1
    else
      r2 = _nt_decimal
      r2.extend(Numericliteral1)
      if r2
        r0 = r2
      else
        r3 = _nt_integer
        r3.extend(Numericliteral2)
        if r3
          r0 = r3
        else
          @index = i0
          r0 = nil
        end
      end
    end

    node_cache[:numericliteral][start_index] = r0

    r0
  end

  def _nt_object
    start_index = index
    if node_cache[:object].has_key?(index)
      cached = node_cache[:object][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_expression

    node_cache[:object][start_index] = r0

    r0
  end

  module ObjectList0
    def object
      elements[0]
    end

    def object_list
      elements[4]
    end
  end

  def _nt_object_list
    start_index = index
    if node_cache[:object_list].has_key?(index)
      cached = node_cache[:object_list][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_object
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s1 << r3
      if r3
        if has_terminal?(",", false, index)
          r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(",")
          r5 = nil
        end
        s1 << r5
        if r5
          s6, i6 = [], index
          loop do
            r7 = _nt_space
            if r7
              s6 << r7
            else
              break
            end
          end
          r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          s1 << r6
          if r6
            r8 = _nt_object_list
            s1 << r8
          end
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(ObjectList0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      r9 = _nt_object
      if r9
        r0 = r9
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:object_list][start_index] = r0

    r0
  end

  module Pathitem0
    def boolean; true; end
  end

  module Pathitem1
    def literal; true; end
  end

  module Pathitem2
  end

  module Pathitem3
    def anonnode; true; end
  end

  module Pathitem4
    def property_list
      elements[2]
    end

  end

  module Pathitem5
    def anonnode; true; end
  end

  module Pathitem6
    def statements
      elements[2]
    end

  end

  module Pathitem7
    def anonnode; true; end
  end

  module Pathitem8
    def path_list
      elements[2]
    end

  end

  module Pathitem9
    def anonnode; true; end
  end

  def _nt_pathitem
    start_index = index
    if node_cache[:pathitem].has_key?(index)
      cached = node_cache[:pathitem][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    r1 = _nt_boolean
    r1.extend(Pathitem0)
    if r1
      r0 = r1
    else
      r2 = _nt_literal
      r2.extend(Pathitem1)
      if r2
        r0 = r2
      else
        r3 = _nt_numericliteral
        if r3
          r0 = r3
        else
          r4 = _nt_symbol
          if r4
            r0 = r4
          else
            i5, s5 = index, []
            if has_terminal?("[", false, index)
              r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
              @index += 1
            else
              terminal_parse_failure("[")
              r6 = nil
            end
            s5 << r6
            if r6
              s7, i7 = [], index
              loop do
                r8 = _nt_space
                if r8
                  s7 << r8
                else
                  break
                end
              end
              r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
              s5 << r7
              if r7
                if has_terminal?("]", false, index)
                  r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure("]")
                  r9 = nil
                end
                s5 << r9
              end
            end
            if s5.last
              r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
              r5.extend(Pathitem2)
              r5.extend(Pathitem3)
            else
              @index = i5
              r5 = nil
            end
            if r5
              r0 = r5
            else
              i10, s10 = index, []
              if has_terminal?("[", false, index)
                r11 = instantiate_node(SyntaxNode,input, index...(index + 1))
                @index += 1
              else
                terminal_parse_failure("[")
                r11 = nil
              end
              s10 << r11
              if r11
                s12, i12 = [], index
                loop do
                  r13 = _nt_space
                  if r13
                    s12 << r13
                  else
                    break
                  end
                end
                r12 = instantiate_node(SyntaxNode,input, i12...index, s12)
                s10 << r12
                if r12
                  r14 = _nt_property_list
                  s10 << r14
                  if r14
                    s15, i15 = [], index
                    loop do
                      r16 = _nt_space
                      if r16
                        s15 << r16
                      else
                        break
                      end
                    end
                    r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
                    s10 << r15
                    if r15
                      if has_terminal?("]", false, index)
                        r17 = instantiate_node(SyntaxNode,input, index...(index + 1))
                        @index += 1
                      else
                        terminal_parse_failure("]")
                        r17 = nil
                      end
                      s10 << r17
                    end
                  end
                end
              end
              if s10.last
                r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
                r10.extend(Pathitem4)
                r10.extend(Pathitem5)
              else
                @index = i10
                r10 = nil
              end
              if r10
                r0 = r10
              else
                i18, s18 = index, []
                if has_terminal?("{", false, index)
                  r19 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure("{")
                  r19 = nil
                end
                s18 << r19
                if r19
                  s20, i20 = [], index
                  loop do
                    r21 = _nt_space
                    if r21
                      s20 << r21
                    else
                      break
                    end
                  end
                  r20 = instantiate_node(SyntaxNode,input, i20...index, s20)
                  s18 << r20
                  if r20
                    r22 = _nt_statements
                    s18 << r22
                    if r22
                      s23, i23 = [], index
                      loop do
                        r24 = _nt_space
                        if r24
                          s23 << r24
                        else
                          break
                        end
                      end
                      r23 = instantiate_node(SyntaxNode,input, i23...index, s23)
                      s18 << r23
                      if r23
                        if has_terminal?("}", false, index)
                          r25 = instantiate_node(SyntaxNode,input, index...(index + 1))
                          @index += 1
                        else
                          terminal_parse_failure("}")
                          r25 = nil
                        end
                        s18 << r25
                      end
                    end
                  end
                end
                if s18.last
                  r18 = instantiate_node(SyntaxNode,input, i18...index, s18)
                  r18.extend(Pathitem6)
                  r18.extend(Pathitem7)
                else
                  @index = i18
                  r18 = nil
                end
                if r18
                  r0 = r18
                else
                  i26, s26 = index, []
                  if has_terminal?("(", false, index)
                    r27 = instantiate_node(SyntaxNode,input, index...(index + 1))
                    @index += 1
                  else
                    terminal_parse_failure("(")
                    r27 = nil
                  end
                  s26 << r27
                  if r27
                    s28, i28 = [], index
                    loop do
                      r29 = _nt_space
                      if r29
                        s28 << r29
                      else
                        break
                      end
                    end
                    r28 = instantiate_node(SyntaxNode,input, i28...index, s28)
                    s26 << r28
                    if r28
                      r30 = _nt_path_list
                      s26 << r30
                      if r30
                        s31, i31 = [], index
                        loop do
                          r32 = _nt_space
                          if r32
                            s31 << r32
                          else
                            break
                          end
                        end
                        r31 = instantiate_node(SyntaxNode,input, i31...index, s31)
                        s26 << r31
                        if r31
                          if has_terminal?(")", false, index)
                            r33 = instantiate_node(SyntaxNode,input, index...(index + 1))
                            @index += 1
                          else
                            terminal_parse_failure(")")
                            r33 = nil
                          end
                          s26 << r33
                        end
                      end
                    end
                  end
                  if s26.last
                    r26 = instantiate_node(SyntaxNode,input, i26...index, s26)
                    r26.extend(Pathitem8)
                    r26.extend(Pathitem9)
                  else
                    @index = i26
                    r26 = nil
                  end
                  if r26
                    r0 = r26
                  else
                    @index = i0
                    r0 = nil
                  end
                end
              end
            end
          end
        end
      end
    end

    node_cache[:pathitem][start_index] = r0

    r0
  end

  module PathList0
    def expression
      elements[0]
    end

    def path_list
      elements[2]
    end
  end

  def _nt_path_list
    start_index = index
    if node_cache[:path_list].has_key?(index)
      cached = node_cache[:path_list][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_expression
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s1 << r3
      if r3
        r5 = _nt_path_list
        s1 << r5
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(PathList0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      if has_terminal?("", false, index)
        r6 = instantiate_node(SyntaxNode,input, index...(index + 0))
        @index += 0
      else
        terminal_parse_failure("")
        r6 = nil
      end
      if r6
        r0 = r6
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:path_list][start_index] = r0

    r0
  end

  def _nt_prop
    start_index = index
    if node_cache[:prop].has_key?(index)
      cached = node_cache[:prop][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_expression

    node_cache[:prop][start_index] = r0

    r0
  end

  module PropertyList0
    def verb
      elements[0]
    end

    def object_list
      elements[2]
    end

    def property_list
      elements[6]
    end
  end

  module PropertyList1
    def verb
      elements[0]
    end

    def object_list
      elements[2]
    end

  end

  module PropertyList2
    def verb
      elements[0]
    end

  end

  module PropertyList3
    def object_missing; true; end
  end

  def _nt_property_list
    start_index = index
    if node_cache[:property_list].has_key?(index)
      cached = node_cache[:property_list][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_verb
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s1 << r3
      if r3
        r5 = _nt_object_list
        s1 << r5
        if r5
          s6, i6 = [], index
          loop do
            r7 = _nt_space
            if r7
              s6 << r7
            else
              break
            end
          end
          r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          s1 << r6
          if r6
            s8, i8 = [], index
            loop do
              if has_terminal?(";", false, index)
                r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
                @index += 1
              else
                terminal_parse_failure(";")
                r9 = nil
              end
              if r9
                s8 << r9
              else
                break
              end
            end
            if s8.empty?
              @index = i8
              r8 = nil
            else
              r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
            end
            s1 << r8
            if r8
              s10, i10 = [], index
              loop do
                r11 = _nt_space
                if r11
                  s10 << r11
                else
                  break
                end
              end
              r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
              s1 << r10
              if r10
                r12 = _nt_property_list
                s1 << r12
              end
            end
          end
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(PropertyList0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i13, s13 = index, []
      r14 = _nt_verb
      s13 << r14
      if r14
        s15, i15 = [], index
        loop do
          r16 = _nt_space
          if r16
            s15 << r16
          else
            break
          end
        end
        r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
        s13 << r15
        if r15
          r17 = _nt_object_list
          s13 << r17
          if r17
            s18, i18 = [], index
            loop do
              r19 = _nt_space
              if r19
                s18 << r19
              else
                break
              end
            end
            r18 = instantiate_node(SyntaxNode,input, i18...index, s18)
            s13 << r18
            if r18
              s20, i20 = [], index
              loop do
                if has_terminal?(";", false, index)
                  r21 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure(";")
                  r21 = nil
                end
                if r21
                  s20 << r21
                else
                  break
                end
              end
              r20 = instantiate_node(SyntaxNode,input, i20...index, s20)
              s13 << r20
            end
          end
        end
      end
      if s13.last
        r13 = instantiate_node(SyntaxNode,input, i13...index, s13)
        r13.extend(PropertyList1)
      else
        @index = i13
        r13 = nil
      end
      if r13
        r0 = r13
      else
        i22, s22 = index, []
        r23 = _nt_verb
        s22 << r23
        if r23
          s24, i24 = [], index
          loop do
            r25 = _nt_space
            if r25
              s24 << r25
            else
              break
            end
          end
          r24 = instantiate_node(SyntaxNode,input, i24...index, s24)
          s22 << r24
          if r24
            s26, i26 = [], index
            loop do
              if has_terminal?(";", false, index)
                r27 = instantiate_node(SyntaxNode,input, index...(index + 1))
                @index += 1
              else
                terminal_parse_failure(";")
                r27 = nil
              end
              if r27
                s26 << r27
              else
                break
              end
            end
            r26 = instantiate_node(SyntaxNode,input, i26...index, s26)
            s22 << r26
          end
        end
        if s22.last
          r22 = instantiate_node(SyntaxNode,input, i22...index, s22)
          r22.extend(PropertyList2)
          r22.extend(PropertyList3)
        else
          @index = i22
          r22 = nil
        end
        if r22
          r0 = r22
        else
          if has_terminal?("", false, index)
            r28 = instantiate_node(SyntaxNode,input, index...(index + 0))
            @index += 0
          else
            terminal_parse_failure("")
            r28 = nil
          end
          if r28
            r0 = r28
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end

    node_cache[:property_list][start_index] = r0

    r0
  end

  module Qname0
    def nprefix
      elements[0]
    end

    def localname
      elements[2]
    end
  end

  module Qname1
    def nprefix
      elements[0]
    end

  end

  module Qname2
    def text_value; ""; end
  end

  module Qname3
  end

  module Qname4
    def barename; true; end
  end

  def _nt_qname
    start_index = index
    if node_cache[:qname].has_key?(index)
      cached = node_cache[:qname][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_nprefix
    s1 << r2
    if r2
      if has_terminal?(":", false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure(":")
        r3 = nil
      end
      s1 << r3
      if r3
        r4 = _nt_localname
        s1 << r4
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Qname0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i5, s5 = index, []
      r6 = _nt_nprefix
      s5 << r6
      if r6
        if has_terminal?(':', false, index)
          r7 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(':')
          r7 = nil
        end
        s5 << r7
      end
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(Qname1)
        r5.extend(Qname2)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r0 = r5
      else
        i8, s8 = index, []
        if has_terminal?(':', false, index)
          r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(':')
          r9 = nil
        end
        s8 << r9
        if r9
          s10, i10 = [], index
          loop do
            r11 = _nt_localname
            if r11
              s10 << r11
            else
              break
            end
          end
          r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
          s8 << r10
        end
        if s8.last
          r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
          r8.extend(Qname3)
        else
          @index = i8
          r8 = nil
        end
        if r8
          r0 = r8
        else
          r12 = _nt_localname
          r12.extend(Qname4)
          if r12
            r0 = r12
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end

    node_cache[:qname][start_index] = r0

    r0
  end

  module SimpleStatement0
    def subject
      elements[0]
    end

    def property_list
      elements[2]
    end
  end

  def _nt_simpleStatement
    start_index = index
    if node_cache[:simpleStatement].has_key?(index)
      cached = node_cache[:simpleStatement][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_subject
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      if s3.empty?
        @index = i3
        r3 = nil
      else
        r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      end
      s1 << r3
      if r3
        r5 = _nt_property_list
        s1 << r5
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(SimpleStatement0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      r6 = _nt_subject
      if r6
        r0 = r6
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:simpleStatement][start_index] = r0

    r0
  end

  def _nt_space
    start_index = index
    if node_cache[:space].has_key?(index)
      cached = node_cache[:space][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    s1, i1 = [], index
    loop do
      if has_terminal?('\G[ \\t\\n\\r]', true, index)
        r2 = true
        @index += 1
      else
        r2 = nil
      end
      if r2
        s1 << r2
      else
        break
      end
    end
    if s1.empty?
      @index = i1
      r1 = nil
    else
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
    end
    if r1
      r0 = r1
    else
      r3 = _nt_comment
      if r3
        r0 = r3
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:space][start_index] = r0

    r0
  end

  def _nt_statement
    start_index = index
    if node_cache[:statement].has_key?(index)
      cached = node_cache[:statement][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    r1 = _nt_declaration
    if r1
      r0 = r1
    else
      r2 = _nt_existential
      if r2
        r0 = r2
      else
        r3 = _nt_simpleStatement
        if r3
          r0 = r3
        else
          r4 = _nt_universal
          if r4
            r0 = r4
          else
            @index = i0
            r0 = nil
          end
        end
      end
    end

    node_cache[:statement][start_index] = r0

    r0
  end

  module Statements0
  end

  module Statements1
    def statement
      elements[0]
    end

  end

  def _nt_statements
    start_index = index
    if node_cache[:statements].has_key?(index)
      cached = node_cache[:statements][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    s0, i0 = [], index
    loop do
      i1 = index
      r2 = _nt_space
      if r2
        r1 = r2
      else
        i3, s3 = index, []
        r4 = _nt_statement
        s3 << r4
        if r4
          s5, i5 = [], index
          loop do
            r6 = _nt_space
            if r6
              s5 << r6
            else
              break
            end
          end
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
          s3 << r5
          if r5
            i8, s8 = index, []
            if has_terminal?('.', false, index)
              r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
              @index += 1
            else
              terminal_parse_failure('.')
              r9 = nil
            end
            s8 << r9
            if r9
              s10, i10 = [], index
              loop do
                r11 = _nt_space
                if r11
                  s10 << r11
                else
                  break
                end
              end
              r10 = instantiate_node(SyntaxNode,input, i10...index, s10)
              s8 << r10
            end
            if s8.last
              r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
              r8.extend(Statements0)
            else
              @index = i8
              r8 = nil
            end
            if r8
              r7 = r8
            else
              r7 = instantiate_node(SyntaxNode,input, index...index)
            end
            s3 << r7
          end
        end
        if s3.last
          r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
          r3.extend(Statements1)
        else
          @index = i3
          r3 = nil
        end
        if r3
          r1 = r3
        else
          @index = i1
          r1 = nil
        end
      end
      if r1
        s0 << r1
      else
        break
      end
    end
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)

    node_cache[:statements][start_index] = r0

    r0
  end

  module StringSingle0
  end

  module StringSingle1
  end

  def _nt_string_single
    start_index = index
    if node_cache[:string_single].has_key?(index)
      cached = node_cache[:string_single][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    if has_terminal?('""', false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 2))
      @index += 2
    else
      terminal_parse_failure('""')
      r2 = nil
    end
    s1 << r2
    if r2
      i3 = index
      if has_terminal?('\G["]', true, index)
        r4 = true
        @index += 1
      else
        r4 = nil
      end
      if r4
        r3 = nil
      else
        @index = i3
        r3 = instantiate_node(SyntaxNode,input, index...index)
      end
      s1 << r3
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(StringSingle0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i5, s5 = index, []
      if has_terminal?('"', false, index)
        r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure('"')
        r6 = nil
      end
      s5 << r6
      if r6
        s7, i7 = [], index
        loop do
          r8 = _nt_string_single_char
          if r8
            s7 << r8
          else
            break
          end
        end
        if s7.empty?
          @index = i7
          r7 = nil
        else
          r7 = instantiate_node(SyntaxNode,input, i7...index, s7)
        end
        s5 << r7
        if r7
          if has_terminal?('"', false, index)
            r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure('"')
            r9 = nil
          end
          s5 << r9
        end
      end
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(StringSingle1)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r0 = r5
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:string_single][start_index] = r0

    r0
  end

  module StringSingleChar0
  end

  module StringSingleChar1
    def hexdigit1
      elements[1]
    end

    def hexdigit2
      elements[2]
    end

    def hexdigit3
      elements[3]
    end

    def hexdigit4
      elements[4]
    end
  end

  module StringSingleChar2
    def hexdigit1
      elements[2]
    end

    def hexdigit2
      elements[3]
    end

    def hexdigit3
      elements[4]
    end

    def hexdigit4
      elements[5]
    end

    def hexdigit5
      elements[6]
    end

    def hexdigit6
      elements[7]
    end
  end

  module StringSingleChar3
  end

  def _nt_string_single_char
    start_index = index
    if node_cache[:string_single_char].has_key?(index)
      cached = node_cache[:string_single_char][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    i1 = index
    if has_terminal?('\G["\\n\\r]', true, index)
      r2 = true
      @index += 1
    else
      r2 = nil
    end
    if r2
      r1 = nil
    else
      @index = i1
      r1 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r1
    if r1
      i3 = index
      i4 = index
      i5, s5 = index, []
      if has_terminal?("\\", false, index)
        r6 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("\\")
        r6 = nil
      end
      s5 << r6
      if r6
        if has_terminal?('\G[\\\\\\"bfnrt]', true, index)
          r7 = true
          @index += 1
        else
          r7 = nil
        end
        s5 << r7
      end
      if s5.last
        r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        r5.extend(StringSingleChar0)
      else
        @index = i5
        r5 = nil
      end
      if r5
        r4 = r5
      else
        i8, s8 = index, []
        if has_terminal?("u", false, index)
          r9 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("u")
          r9 = nil
        end
        s8 << r9
        if r9
          r10 = _nt_hexdigit
          s8 << r10
          if r10
            r11 = _nt_hexdigit
            s8 << r11
            if r11
              r12 = _nt_hexdigit
              s8 << r12
              if r12
                r13 = _nt_hexdigit
                s8 << r13
              end
            end
          end
        end
        if s8.last
          r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
          r8.extend(StringSingleChar1)
        else
          @index = i8
          r8 = nil
        end
        if r8
          r4 = r8
        else
          i14, s14 = index, []
          if has_terminal?("U", false, index)
            r15 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure("U")
            r15 = nil
          end
          s14 << r15
          if r15
            if has_terminal?("00", false, index)
              r16 = instantiate_node(SyntaxNode,input, index...(index + 2))
              @index += 2
            else
              terminal_parse_failure("00")
              r16 = nil
            end
            s14 << r16
            if r16
              r17 = _nt_hexdigit
              s14 << r17
              if r17
                r18 = _nt_hexdigit
                s14 << r18
                if r18
                  r19 = _nt_hexdigit
                  s14 << r19
                  if r19
                    r20 = _nt_hexdigit
                    s14 << r20
                    if r20
                      r21 = _nt_hexdigit
                      s14 << r21
                      if r21
                        r22 = _nt_hexdigit
                        s14 << r22
                      end
                    end
                  end
                end
              end
            end
          end
          if s14.last
            r14 = instantiate_node(SyntaxNode,input, i14...index, s14)
            r14.extend(StringSingleChar2)
          else
            @index = i14
            r14 = nil
          end
          if r14
            r4 = r14
          else
            @index = i4
            r4 = nil
          end
        end
      end
      if r4
        r3 = r4
      else
        if index < input_length
          r23 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("any character")
          r23 = nil
        end
        if r23
          r3 = r23
        else
          @index = i3
          r3 = nil
        end
      end
      s0 << r3
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(StringSingleChar3)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:string_single_char][start_index] = r0

    r0
  end

  module StringMulti0
  end

  def _nt_string_multi
    start_index = index
    if node_cache[:string_multi].has_key?(index)
      cached = node_cache[:string_multi][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?('"""', false, index)
      r1 = instantiate_node(SyntaxNode,input, index...(index + 3))
      @index += 3
    else
      terminal_parse_failure('"""')
      r1 = nil
    end
    s0 << r1
    if r1
      s2, i2 = [], index
      loop do
        r3 = _nt_string_multi_single_char
        if r3
          s2 << r3
        else
          break
        end
      end
      r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
      s0 << r2
      if r2
        if has_terminal?('"""', false, index)
          r4 = instantiate_node(SyntaxNode,input, index...(index + 3))
          @index += 3
        else
          terminal_parse_failure('"""')
          r4 = nil
        end
        s0 << r4
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(StringMulti0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:string_multi][start_index] = r0

    r0
  end

  module StringMultiSingleChar0
  end

  def _nt_string_multi_single_char
    start_index = index
    if node_cache[:string_multi_single_char].has_key?(index)
      cached = node_cache[:string_multi_single_char][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    if has_terminal?("\\\"", false, index)
      r1 = instantiate_node(SyntaxNode,input, index...(index + 2))
      @index += 2
    else
      terminal_parse_failure("\\\"")
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i2, s2 = index, []
      i3 = index
      if has_terminal?('"""', false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 3))
        @index += 3
      else
        terminal_parse_failure('"""')
        r4 = nil
      end
      if r4
        r3 = nil
      else
        @index = i3
        r3 = instantiate_node(SyntaxNode,input, index...index)
      end
      s2 << r3
      if r3
        if index < input_length
          r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("any character")
          r5 = nil
        end
        s2 << r5
      end
      if s2.last
        r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
        r2.extend(StringMultiSingleChar0)
      else
        @index = i2
        r2 = nil
      end
      if r2
        r0 = r2
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:string_multi_single_char][start_index] = r0

    r0
  end

  def _nt_subject
    start_index = index
    if node_cache[:subject].has_key?(index)
      cached = node_cache[:subject][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    r0 = _nt_expression

    node_cache[:subject][start_index] = r0

    r0
  end

  def _nt_symbol
    start_index = index
    if node_cache[:symbol].has_key?(index)
      cached = node_cache[:symbol][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    r1 = _nt_qname
    if r1
      r0 = r1
    else
      r2 = _nt_explicituri
      if r2
        r0 = r2
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:symbol][start_index] = r0

    r0
  end

  module SymbolCsl0
    def symbol
      elements[0]
    end

    def symbol_csl
      elements[4]
    end
  end

  def _nt_symbol_csl
    start_index = index
    if node_cache[:symbol_csl].has_key?(index)
      cached = node_cache[:symbol_csl][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    r2 = _nt_symbol
    s1 << r2
    if r2
      s3, i3 = [], index
      loop do
        r4 = _nt_space
        if r4
          s3 << r4
        else
          break
        end
      end
      r3 = instantiate_node(SyntaxNode,input, i3...index, s3)
      s1 << r3
      if r3
        if has_terminal?(",", false, index)
          r5 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure(",")
          r5 = nil
        end
        s1 << r5
        if r5
          s6, i6 = [], index
          loop do
            r7 = _nt_space
            if r7
              s6 << r7
            else
              break
            end
          end
          r6 = instantiate_node(SyntaxNode,input, i6...index, s6)
          s1 << r6
          if r6
            r8 = _nt_symbol_csl
            s1 << r8
          end
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(SymbolCsl0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      r9 = _nt_symbol
      if r9
        r0 = r9
      else
        @index = i0
        r0 = nil
      end
    end

    node_cache[:symbol_csl][start_index] = r0

    r0
  end

  module Verb0
    def prop
      elements[3]
    end
  end

  module Verb1
    def prop
      elements[3]
    end

  end

  module Verb2
    # is xxx of
         def invert; true; end
  end

  module Verb3
  end

  module Verb4
    def invert; true; end
  end

  def _nt_verb
    start_index = index
    if node_cache[:verb].has_key?(index)
      cached = node_cache[:verb][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0 = index
    i1, s1 = index, []
    if has_terminal?("@", false, index)
      r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("@")
      r3 = nil
    end
    if r3
      r2 = r3
    else
      r2 = instantiate_node(SyntaxNode,input, index...index)
    end
    s1 << r2
    if r2
      if has_terminal?("has", false, index)
        r4 = instantiate_node(SyntaxNode,input, index...(index + 3))
        @index += 3
      else
        terminal_parse_failure("has")
        r4 = nil
      end
      s1 << r4
      if r4
        s5, i5 = [], index
        loop do
          r6 = _nt_space
          if r6
            s5 << r6
          else
            break
          end
        end
        if s5.empty?
          @index = i5
          r5 = nil
        else
          r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
        end
        s1 << r5
        if r5
          r7 = _nt_prop
          s1 << r7
        end
      end
    end
    if s1.last
      r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
      r1.extend(Verb0)
    else
      @index = i1
      r1 = nil
    end
    if r1
      r0 = r1
    else
      i8, s8 = index, []
      if has_terminal?("@", false, index)
        r10 = instantiate_node(SyntaxNode,input, index...(index + 1))
        @index += 1
      else
        terminal_parse_failure("@")
        r10 = nil
      end
      if r10
        r9 = r10
      else
        r9 = instantiate_node(SyntaxNode,input, index...index)
      end
      s8 << r9
      if r9
        if has_terminal?("is", false, index)
          r11 = instantiate_node(SyntaxNode,input, index...(index + 2))
          @index += 2
        else
          terminal_parse_failure("is")
          r11 = nil
        end
        s8 << r11
        if r11
          s12, i12 = [], index
          loop do
            r13 = _nt_space
            if r13
              s12 << r13
            else
              break
            end
          end
          if s12.empty?
            @index = i12
            r12 = nil
          else
            r12 = instantiate_node(SyntaxNode,input, i12...index, s12)
          end
          s8 << r12
          if r12
            r14 = _nt_prop
            s8 << r14
            if r14
              s15, i15 = [], index
              loop do
                r16 = _nt_space
                if r16
                  s15 << r16
                else
                  break
                end
              end
              if s15.empty?
                @index = i15
                r15 = nil
              else
                r15 = instantiate_node(SyntaxNode,input, i15...index, s15)
              end
              s8 << r15
              if r15
                if has_terminal?("@", false, index)
                  r18 = instantiate_node(SyntaxNode,input, index...(index + 1))
                  @index += 1
                else
                  terminal_parse_failure("@")
                  r18 = nil
                end
                if r18
                  r17 = r18
                else
                  r17 = instantiate_node(SyntaxNode,input, index...index)
                end
                s8 << r17
                if r17
                  if has_terminal?("of", false, index)
                    r19 = instantiate_node(SyntaxNode,input, index...(index + 2))
                    @index += 2
                  else
                    terminal_parse_failure("of")
                    r19 = nil
                  end
                  s8 << r19
                end
              end
            end
          end
        end
      end
      if s8.last
        r8 = instantiate_node(SyntaxNode,input, i8...index, s8)
        r8.extend(Verb1)
        r8.extend(Verb2)
      else
        @index = i8
        r8 = nil
      end
      if r8
        r0 = r8
      else
        i20, s20 = index, []
        if has_terminal?("@", false, index)
          r22 = instantiate_node(SyntaxNode,input, index...(index + 1))
          @index += 1
        else
          terminal_parse_failure("@")
          r22 = nil
        end
        if r22
          r21 = r22
        else
          r21 = instantiate_node(SyntaxNode,input, index...index)
        end
        s20 << r21
        if r21
          if has_terminal?("a", false, index)
            r23 = instantiate_node(SyntaxNode,input, index...(index + 1))
            @index += 1
          else
            terminal_parse_failure("a")
            r23 = nil
          end
          s20 << r23
          if r23
            i24 = index
            if has_terminal?(":", false, index)
              r25 = instantiate_node(SyntaxNode,input, index...(index + 1))
              @index += 1
            else
              terminal_parse_failure(":")
              r25 = nil
            end
            if r25
              r24 = nil
            else
              @index = i24
              r24 = instantiate_node(SyntaxNode,input, index...index)
            end
            s20 << r24
          end
        end
        if s20.last
          r20 = instantiate_node(SyntaxNode,input, i20...index, s20)
          r20.extend(Verb3)
        else
          @index = i20
          r20 = nil
        end
        if r20
          r0 = r20
        else
          if has_terminal?("=>", false, index)
            r26 = instantiate_node(SyntaxNode,input, index...(index + 2))
            @index += 2
          else
            terminal_parse_failure("=>")
            r26 = nil
          end
          if r26
            r0 = r26
          else
            if has_terminal?("<=", false, index)
              r27 = instantiate_node(SyntaxNode,input, index...(index + 2))
              r27.extend(Verb4)
              @index += 2
            else
              terminal_parse_failure("<=")
              r27 = nil
            end
            if r27
              r0 = r27
            else
              if has_terminal?("=", false, index)
                r28 = instantiate_node(SyntaxNode,input, index...(index + 1))
                @index += 1
              else
                terminal_parse_failure("=")
                r28 = nil
              end
              if r28
                r0 = r28
              else
                r29 = _nt_prop
                if r29
                  r0 = r29
                else
                  @index = i0
                  r0 = nil
                end
              end
            end
          end
        end
      end
    end

    node_cache[:verb][start_index] = r0

    r0
  end

  module Universal0
    def symbol_csl
      elements[3]
    end
  end

  def _nt_universal
    start_index = index
    if node_cache[:universal].has_key?(index)
      cached = node_cache[:universal][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    i0, s0 = index, []
    if has_terminal?("@", false, index)
      r2 = instantiate_node(SyntaxNode,input, index...(index + 1))
      @index += 1
    else
      terminal_parse_failure("@")
      r2 = nil
    end
    if r2
      r1 = r2
    else
      r1 = instantiate_node(SyntaxNode,input, index...index)
    end
    s0 << r1
    if r1
      if has_terminal?("forAll", false, index)
        r3 = instantiate_node(SyntaxNode,input, index...(index + 6))
        @index += 6
      else
        terminal_parse_failure("forAll")
        r3 = nil
      end
      s0 << r3
      if r3
        s4, i4 = [], index
        loop do
          r5 = _nt_space
          if r5
            s4 << r5
          else
            break
          end
        end
        if s4.empty?
          @index = i4
          r4 = nil
        else
          r4 = instantiate_node(SyntaxNode,input, i4...index, s4)
        end
        s0 << r4
        if r4
          r6 = _nt_symbol_csl
          s0 << r6
        end
      end
    end
    if s0.last
      r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
      r0.extend(Universal0)
    else
      @index = i0
      r0 = nil
    end

    node_cache[:universal][start_index] = r0

    r0
  end

  def _nt_URI_Reference
    start_index = index
    if node_cache[:URI_Reference].has_key?(index)
      cached = node_cache[:URI_Reference][index]
      if cached
        cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
        @index = cached.interval.end
      end
      return cached
    end

    s0, i0 = [], index
    loop do
      if has_terminal?('\G[^{}<>]', true, index)
        r1 = true
        @index += 1
      else
        r1 = nil
      end
      if r1
        s0 << r1
      else
        break
      end
    end
    r0 = instantiate_node(SyntaxNode,input, i0...index, s0)

    node_cache[:URI_Reference][start_index] = r0

    r0
  end

end

class N3GrammerParser < Treetop::Runtime::CompiledParser
  include N3Grammer
end