PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A non-transitory storage medium encoded with machine-readable computer program code for providing search and reference functions for a messaging system, the non-transitory storage medium including instructions for causing a computer to implement a method, comprising:
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com