PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Saudi Aramco currently operates, in addition to fifteen for meteorology only, ten meteorological stations which monitor air quality, checking for airborne ore particles and emissions of pollutants such as carbon dioxide, carbon monoxide, nitrogen oxide, and hydrogen sulfite.
http://www.w3.org/ns/prov#wasQuotedFrom
  • saudiembassy.net