PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The burden of proof for ambiguous content should be on the provider???s end, not the consumer???s.The public must know, instantly and unambiguously, whether content is a real, staff-originated news story or advertising.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spj.org