PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Law makers in 1990 probably could not have imagined that two long decades later, mercury and other toxic emissions from power plants remain uncontrolled ??? even though the power industry is the biggest domestic source of toxic mercury air pollution in the nation, which has contaminated all fifty states.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org