PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A central question involving the resource remains: Is the energy needed to produce oil from the kerogen locked in shale, through heating or other means, too great to make it worthwhile?
http://www.w3.org/ns/prov#wasQuotedFrom
  • gjsentinel.com