PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The chief option is imported natural gas, which can displace oil but is a short- to mid-term option and cannot be relied upon for the long term and should be used as a peaking source.
http://www.w3.org/ns/prov#wasQuotedFrom
  • worldwidescience.org