PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The densities of the giant planets are about 1000-2000 kg m -3 and most of their volume is liquid.
http://www.w3.org/ns/prov#wasQuotedFrom
  • eso.org