PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Companies say they are aiming to apply technology learned from the Bakken to geologically similar shales in China, France, Poland, Canada and in some U.S. states, including Wyoming, Utah and Colorado.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yuku.com