PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Specialised dumpers now return 'undef' when there are no problems and a message when there is a problem.
http://www.w3.org/ns/prov#wasQuotedFrom
  • metacpan.org