PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The current Google Voice offering includes features such as a conferencing bridge, call recording, unified messaging, simultaneous ring, voice mail transcription, call screening, click to dial, call logging, and mobile phone clients.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nojitter.com