PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • wellbore tubing, surface flow lines, pipelines, separators, and other facilities such as oil and gas processing plants and refineries.
http://www.w3.org/ns/prov#wasQuotedFrom
  • docstoc.com