PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Kyoto Protocol, finalised in Marrakech in November, covers six greenhouse gases released by human activity, including CO2, methane, nitrous oxide and hydrofluorocarbons.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com