PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • What, for instance, does one do about posts or pictures or other pieces of data that are copied and re-posted by others?
http://www.w3.org/ns/prov#wasQuotedFrom
  • huffingtonpost.com