PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Many countries such as the United States, and Canada have unlimited supplies of natural gas which could also cause put pressure on oil prices for years to come.
http://www.w3.org/ns/prov#wasQuotedFrom
  • fool.com