PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The hydrogen economy, fuel cells, and electric carsNovember 2003Reuel ShinnarHopes have again been raised about developing a ???hydrogen economy???, in which hydrogen could be expected to replace oil and natural gas for most uses, including transportation and heating.
http://www.w3.org/ns/prov#wasQuotedFrom
  • elsevier.com