PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This use may take the form of ion exchange for water softening/demineralization, sand filtration, activated carbon, and other fluid treatment processes.
http://www.w3.org/ns/prov#wasQuotedFrom
  • wwdmag.com