PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Renewable energy sources, principally biomass and hydropower, now contribute about 4.8 quads or six percent to the U.S. energy supply.
http://www.w3.org/ns/prov#wasQuotedFrom
  • energypost.eu