PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This has long been used by government, military and other institutions that had the money (these methods used to be obscenely expensive to implement) ??? but now are within the reach of the average user.
http://www.w3.org/ns/prov#wasQuotedFrom
  • parasam.me