PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Oil is pulled from the ground by a well and moved to a flow station, which removes natural gas, plus impurities that can cause corrosion - water, gases such as carbon dioxide, hydrogen sulfide and oxygen, and solids.
http://www.w3.org/ns/prov#wasQuotedFrom
  • juneauempire.com