PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The water used in the process is recovered???the industry calls it ???produced water??????and must be disposed of safely, since in addition to the chemicals in it, it can collect salt, methane, and other toxins underground.
http://www.w3.org/ns/prov#wasQuotedFrom
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