PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Orion nebula, or Messier 42, M42, or NGC 1976, is a diffuse nebula.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wikipedia.org