PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Multinational energy firms and some economists say exporting natural gas is a no-brainer: the cost of producing natural gas in the United States has plummeted with the explosion in shale gas production, while prices remain high elsewhere in the world.
http://www.w3.org/ns/prov#wasQuotedFrom
  • rochesterenvironment.com