PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Although other power sources, such as solar panels, also have no emissions, the treatments used in production of solar panels are much more environmentally degrading than building a geothermal plant to supply a comparable amount of energy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wisegeek.com