PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When one or more of the other chat participants contacts the Call Broker and supplies the session and PAC information (typically provided in the chat or messaging context by the first user), along with respective callback telephone numbers, the Call Broker seeks to establish a telephone connection between the chat participants electing to take part, usually including the first user.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com