PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Other factors related to well drilling and production, such as human error, improper casing or cementing of a well, or well construction may also be causes of contamination.
http://www.w3.org/ns/prov#wasQuotedFrom
  • typepad.com