PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Methane burns with a blue flame. (Photo credit unknown) While carbon dioxide is the most abundant greenhouse gas, the others - methane, nitrous oxide, and halocarbons - also contribute to the blanket of gas trapping the heat of the Sun close to the planet.
http://www.w3.org/ns/prov#wasQuotedFrom
  • ens-newswire.com