PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • When the energy is needed, the hydrogen and oxygen can either be recombined to produce electricity, such as with a fuel cell, or the hydrogen can potentially be converted into a liquid fuel, like ammonia, and used to power vehicles.
http://www.w3.org/ns/prov#wasQuotedFrom
  • gigaom.com