PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Range and other companies are casing their wells with as many as four layers of steel and cement, redundancies that Frantz said dramatically reduce any risk of groundwater contamination.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wvgazette.com