PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As mentioned above the estimated cost of this pollution is $90 billion annually, and it???s borne by children, seniors, and other vulnerable people who breathe mercury and other toxic air pollution.
http://www.w3.org/ns/prov#wasQuotedFrom
  • thinkprogress.org