PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In 1972 Congress passed the Federal Water Pollution Control Act, commonly known as the Clean Water Act, with a goal to eliminate the discharge of pollutants into rivers, lakes, streams and other waterways, and to attain, wherever possible, waters that were both ?fishable and swimmable.?
http://www.w3.org/ns/prov#wasQuotedFrom
  • enviroliteracy.org