PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • By incorporating a ???retrofit??? system, the engine owner will achieve immediate and significant reductions in NOx and PM emissions on most diesel, natural gas, and ???lean-burn??? vehicles, ships, generators, and other equipment that emit NOx.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.es