PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Additionally, factors such as drilling, the cost of wells and the amount of natural gas produced within a well's lifetime will no doubt also influence cost.
http://www.w3.org/ns/prov#wasQuotedFrom
  • al-monitor.com