PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In that region of the Pacific, researchers estimated that each 2.20 pounds of aircraft emissions -- specifically oxides of nitrogen, or NOx, such as nitric oxide and nitrogen dioxide - produces an extra 33 pounds of ozone in one year.
http://www.w3.org/ns/prov#wasQuotedFrom
  • spacedaily.com