Rule ParallelSplit
  output 'o2'
  output 'o1'
Flow
  rule B
  rule A
  rule Init
  rule C
End

Rule B
  input 'p1'
  output 'o1'
End

Rule A
  input 'i1'
  output 'p1'
  output 'p2'
End

Rule Init
  output 'i1'
End

Rule C
  input 'p2'
  output 'o2'
End