PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Methane is the cleanest of the fossil fuels and could be used for electricty and transportation while we ramp up efficiency, solar, CSP solar, goethermal, ocean energy, rail and bus trasportation.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wsj.com