PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Coal gasification technologies use chemical processes to convert synthesis gas (syngas), derived from coal directly to gaseous hydrogen or to other clean fuels that can carry hydrogen to fueling stations and other applications.
http://www.w3.org/ns/prov#wasQuotedFrom
  • typepad.com