PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???There is a trend going on in parts of the world, especially in North America, where there are alternative forms of crude being produced.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energypost.eu