PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One way is to produce hydrogen from electrolysis, using electricity to split water into hydrogen and oxygen, using solar energy, for example, or other kinds of renewable energy.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pbs.org