PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Leaking underground tanks can release petroleum or other hazardous substances into the soil and can contaminate groundwater, the source of drinking water for nearly one-third of all Americans.
http://www.w3.org/ns/prov#wasQuotedFrom
  • utsandiego.com