PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Gases such as carbon dioxide and nitrogen dioxide which are common with fossil fuel emissions. ???Geothermal fields produce only about one-sixth of the carbon dioxide that a relatively clean natural-gas-fueled power plant produces, and very little if any, of the nitrogen dioxide or sulfur-bearing gases.
http://www.w3.org/ns/prov#wasQuotedFrom
  • imechanica.org