PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Class 1 Div 2 is very common in industries such as oil and gas refining and petrochemical manufacturing.
http://www.w3.org/ns/prov#wasQuotedFrom
  • transition.com