PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Drilling Equipment comprises of the mast or derrick that is hauled over the sub structure and other Equipment such as the engines, pumps, and the hoisting and rotating Equipment that are aligned together and connected.
http://www.w3.org/ns/prov#wasQuotedFrom
  • flowtechenergy.com