PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A principal object of the present invention is a method of using low cost catalyst system that is capable of treating an automotive exhaust produced by burning a rich fuel mixture in an automotive engine to simultaneously eliminate therefrom unburned hydrocarbons, carbon monoxide and oxides of nitrogen.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com