PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Carbon dioxide is the most prevalent greenhouse gas linked to climate change, and the world???s output of it has exceeded 350 ppm.
http://www.w3.org/ns/prov#wasQuotedFrom
  • greatlakesecho.org