PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This very hot material emits X-rays by thermal bremsstrahlung emission, and line emission from metals. (In astronomy, metals" often means all elements except hydrogen and helium.)
http://www.w3.org/ns/prov#wasQuotedFrom
  • newworldencyclopedia.org