PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It became clear that OPEC, mainly Saudi Arabia, must cut back production if the price were to stay around $100 a barrel, which [???]
http://www.w3.org/ns/prov#wasQuotedFrom
  • peakoil.com