PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • With a density similar to that of Neptune, the exoplanet is an ice giant and probably has a rocky core and lots of water that forms ice in the interior under high pressure and temperature.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science20.com