PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • use gases such as carbon dioxide, methane and ozone, with the burning of fossil fuels being the primary source.
http://www.w3.org/ns/prov#wasQuotedFrom
  • desmogblog.com