PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • But puzzlingly, some black holes, such as the one thought to be at the centre of the Milky Way, do not shine as brightly as they would if they were consuming all the available gas.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newscientist.com