PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The casing is a pipe that carries the drilling and production equipment up and down and the oil flow up to barges or tankers.
http://www.w3.org/ns/prov#wasQuotedFrom
  • westernjournalism.com