PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In addition to e-mail and other sources, classification can be performed on instant messages, and other sources of information, such as stock tickers, and so forth. [0171] In general, a sender-recipient structural relationship may be considered in the classification process.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com