PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These... 39 5709077 Reduce pollution hydrocarbon combustion gas generator A gas generator is provided for generating gas including steam and carbon dioxide from the combustion of a hydrocarbon gas with oxygen.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com