PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The present invention is a great improvement over prior art methods and assemblies by eliminating the well completion step of running a packing job on a separate work string which must be run down the well and then run back up, thus exposing the well to seal problems, potential fluid loss, and using expensive rig time.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com