PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Sun is a population I star; it was born in the later stages of the universe's evolution, and thus contains more elements heavier than hydrogen and helium (metals" in astronomical parlance) than older population II stars.
http://www.w3.org/ns/prov#wasQuotedFrom
  • airports-worldwide.com