PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • All the experimental and observational data I know of says that carbon dioxide is a greenhouse gas, that it???s increasing due to human technology, and that the world is warming as a result.
http://www.w3.org/ns/prov#wasQuotedFrom
  • realclimate.org