PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • There is a need in the art for a low cost alternative to hydraulic cement or thermosetting resins for use in oil and gas well completion and remedial methods where cracks, voids, and other areas need to be filled in and sealed.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com