PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The dominant process is petroleum refining, which involves the separation of crude petroleum into component products through such techniques as cracking and distillation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • un.org