PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As its temperature increased and crossed the melting point of iron (about 1500 ??C), the iron and other heavier elements sank towards the center of the earth.
http://www.w3.org/ns/prov#wasQuotedFrom
  • comcast.net