PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Independent's article is mostly gung-ho on the idea, but it notes that the process of extracting carbon dioxide from air is still too expensive to work well on a commercial scale???for now.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newser.com