PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Drilling muds are made of bentonite and other clays, and/or polymers, mixed with water to the desired viscosity.
http://www.w3.org/ns/prov#wasQuotedFrom
  • osti.gov