PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Exploration, development, drilling and production activities are subject to many risks, including the risk that commercially productive reservoirs will not be discovered.
http://www.w3.org/ns/prov#wasQuotedFrom
  • getfilings.com