PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • If the second parameter to this method is a reference to a subroutine, this subroutine will be used instead of the dispatcher.
http://www.w3.org/ns/prov#wasQuotedFrom
  • cpan.org