PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide is the most important greenhouse gas, because it is long-lived, and because it is released in huge quantities from every combustion engine, from every fireplace, and from most of the world???s power-generating plants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • climatecentral.org