PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • A significant amount of pollution comes from the production and use of energy, including release of nitrous oxide, sulfur dioxide, carbon dioxide, hydrogen fluoride, barium, chromium, and mercury.
http://www.w3.org/ns/prov#wasQuotedFrom
  • state.mn.us