PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These ancient plants, animals, lands and seas have left traces today that give us clues toward finding natural resources, such as oil and gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • aapg.org