PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Sierrita project is one of several projects proposed by energy companies to export some of the growing U.S. gas production from shale fields to Mexico and other countries.
http://www.w3.org/ns/prov#wasQuotedFrom
  • rigzone.com