PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Because oil is a finite resource, the world has been ??running out?? of oil since the first barrel was extracted, and oil supply eventually will not be capable of satisfying rising world demand at prevailing prices.
http://www.w3.org/ns/prov#wasQuotedFrom
  • geotimes.org