PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • One reason I give carbon credits a green thumbs up, even with all the caveats, problems, fraud and other nefarious activities charading as positive actions for our global atmosphere, is the power of historical data.In the latter half of the 20th century, acid rain was a hideous environmental problem, killing forests and poisoning lakes and streams.
http://www.w3.org/ns/prov#wasQuotedFrom
  • science20.com