PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Field of the Invention [0003] The present invention relates generally to selective delivery of electronic communications, particularly preventing delivery of unwanted electronic communications, such as SPAM sent from a sender to a recipient.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com