PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • diesel oil and other products which are substantially free of sulfur, metals, such as vanadium, iron, etc., salts and other undesirable constituents by means of a simplified technique which results in a lowered cost in producing the above products.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com