PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Update 2 October 2008: David Cushman interviewed Clay Shirky in London and is posting a series of videos at Faster Future, including an answer to my question.
http://www.w3.org/ns/prov#wasQuotedFrom
  • mattedgar.com