PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In some embodiments a system consistent with the present invention operates on data streams, for example real-time data produced by a messaging session.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com