PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Tier 4 Clean Diesel Technology at CONEXPO-CON/AGG 2014 The new clean diesel technologies, known as the Tier 4 final standards, have near zero emissions and are the cleanest diesel engines ever produced.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dieselforum.org