PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Internal combustion engines including diesel engines produce a number of combustion products including particulates, hydrocarbons (???HC???), carbon monoxide (???CO???), oxides of nitrogen (???NOx???), oxides of sulfur (???SOx???) and others.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com