PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When wells are drilled, there is a very high rate of successful (not necessarily economic, however) wells--approximately 98%.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energybulletin.net