PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ^ Conventional gas-fired power stations burn methane, the primary component of natural gas, in a stream of air, producing a mixture of nitrogen and greenhouse gases including carbon dioxide and nitrogen oxides, which are emitted into the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thefullwiki.org