PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One approach is a system in which users enroll for a voice newsletter at a web site and specify their interests, and then call in periodically to listen to their newsletter and browse through its articles.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com