PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention is a method for fracturing a tar sand formation between an injection well and a production well in communication with the tar sand formation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com