PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One idea, proposed by Jonathan Fortney at NASA Ames Research Center in California, is that the planet is so hot that metals such as titanium and vanadium can exist in their gaseous forms in the planet's atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom
  • chiefsplanet.com