PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Tom Mathers, spokesman for the State Division of Air Quality, says the reduction is a direct result of the Clean Smokestack Act ??? passed in 2002. ???The power companies were required under the Clean Smokestack Act to reduce their emissions that cause ozone and haze, acid rain and other problems.
http://www.w3.org/ns/prov#wasQuotedFrom
  • whqr.org