PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Other countries and regions, especially Russia and the Middle East, could find their positions weakened despite the financial, technical and environmental doubts surrounding the future of shale gas as a non-conventional energy source.
http://www.w3.org/ns/prov#wasQuotedFrom
  • middle-east-online.com