PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Hydraulic fracturing fluid means the liquid or gas, and any associated solids used in hydraulic fracturing, including constituents such as water, chemicals, and proppants.
http://www.w3.org/ns/prov#wasQuotedFrom
  • federalregister.gov