PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Scientists don???t yet know if Kepler-22b has a predominantly rocky, gaseous, or liquid composition, but its discovery is a step closer to finding Earth-like planets.Previous research hinted at the existence of near-Earth-sized planets in habitable zones, but clear confirmation proved elusive.
http://www.w3.org/ns/prov#wasQuotedFrom
  • astronomy.com