PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The invention provides a system and method for more effective measurement and observation of listener or viewer response or commitment to various forms of audio and visual content, including music, film, television and Internet based content.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com