PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This new rig concept can be used on every rig on- or offshore where well costs, well safety and efficiency is an issue.
http://www.w3.org/ns/prov#wasQuotedFrom
  • drillingcontractor.org