PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The Colorado River, including Lake Mead and Lake Powell, it pointed out, is fed by melting snow from the Rocky Mountains and is ???the main source of water for 30 million people in the Southwest.???
http://www.w3.org/ns/prov#wasQuotedFrom
  • typepad.com