PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Sometimes the star becomes just half as bright as normal, and other times it fades by a factor of five!
http://www.w3.org/ns/prov#wasQuotedFrom
  • skyandtelescope.com