PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • (Note: some manufacturers have multi-step processes ??? for example, they make syngas from wood and then catalytically convert that syngas into an end product, such as ethanol.
http://www.w3.org/ns/prov#wasQuotedFrom
  • biofuelsdigest.com