PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, oil is a finite resource, and there is an ongoing debate surrounding what has been termed ???peak oil??? .
http://www.w3.org/ns/prov#wasQuotedFrom
  • energybulletin.net