PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The agency reported this estimate is a nearly threefold increase in mean natural gas from the 2008 assessment and an almost threefold increase in mean natural gas liquids resources.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aapg.org