PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention provides a method for highlighting information contained in an electronic message, which may be an e-mail message, meeting request, or other form of electronic communication.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com