PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide and other heat-trapping gases rise from the interior of the planet through volcanoes and other outlets.
http://www.w3.org/ns/prov#wasQuotedFrom
  • carlzimmer.com