PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Cabot responded that methane comes from the ground and factors other than drilling can bring it into contact with water supplies.
http://www.w3.org/ns/prov#wasQuotedFrom
  • blogspot.com.au