PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Combustion pollutants are gases or particles that come from appliances that use natural gas such as furnaces, hot water heaters and gas stoves.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nationaljewish.org