PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Albireo is a binary system consisting of a gold star and a blue star orbiting a central mass.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dudleyobservatory.org