PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This summer Oklahoma experienced what regulators think is the largest oil and gas drilling spill of its kind, when more than 21,000 gallons of hydrochloric acid spilled into a farmer's alfalfa field.
http://www.w3.org/ns/prov#wasQuotedFrom
  • yourkwoffice.com