PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Evidence of the Permo-Carboniferous ice-age era that peaked some 280 million years ago, for example, was scattered over almost half the Earth, including the hottest deserts.
http://www.w3.org/ns/prov#wasQuotedFrom
  • pangaea.org