Iqvoc.default_rdf_namespace_helper_methods.each do |meth|
  document.namespaces(self.send(meth))
end

document << @collection.build_rdf_subject do |collection|
  @collection.labelings.each do |labeling|
    labeling.build_rdf(document, collection)
  end

  @collection.note_skos_definitions.each do |n|
    n.build_rdf(document, collection)
  end

  @collection.concepts.each do |concept|
    collection.Skos::member(IqRdf.build_uri(concept.origin))
  end

  @collection.subcollections.each do |subcollection|
    collection.Skos::member(IqRdf::Coll.build_uri(subcollection.origin))
  end

end