PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • During operation of live oil or gas wells, it is sometimes necessary to run a tool, such as a perforating gun, into the well.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com