PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In contrast to the prior art, the present invention comprises a method and apparatus especially suitable for hydraulically releasing from a screen on a circulation-type gravel pack job.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com