PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • That process requires a reducing agent, such as elemental hydrogen (H2), dry plant matter, heat, and technology.
http://www.w3.org/ns/prov#wasQuotedFrom
  • canadafreepress.com