PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Which source is the most promising for providing cheap, abundant, clean energy?Tom Murphy: First let me say that I think proven is too strong a word.
http://www.w3.org/ns/prov#wasQuotedFrom
  • oilprice.com