PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These other elements are generated by stellar processes.[3][4][5] In astronomy, a metal is any element other than hydrogen or helium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org