PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • * Many drinking water systems in the United States contain over 700 chemicals, including dangerously high levels of lead.
http://www.w3.org/ns/prov#wasQuotedFrom
  • goinggreen2day.com