PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Audio and video recordings, published works, memos, email, and any other documents that could be used in a court of law are considered valid sources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blueturban.com