PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • While nothing is inherently wrong with profitably matching user interest to content ??? specifically, in the various ways in which Google does so ??? the absence of value as an essential and reliable factor in the equation, as well as the fact that the structure of this economy is strongest when content is text, makes for the instability we are experiencing.
http://www.w3.org/ns/prov#wasQuotedFrom
  • smashingmagazine.com