PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The primary objective is to make all casing elements, including casing patches and casing inserts, and all liner elements, including curved channels, multi-channel whipstocks and straight liner elements, capable of withstanding handling by conventional lifting and drilling rig equipment without any damage to their seal surfaces.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com