PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These pollutants cause or contribute to global warming and to environmental and health problems including acid rain, smog, particulate pollution and mercury deposition.
http://www.w3.org/ns/prov#wasQuotedFrom
  • nrdc.org