PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In circumstances where the highest quality of effluent is required, a third (tertiary) stage of treatment can be used to remove most the remaining suspended organic matter from the effluent before it is discharged to a watercourse.
http://www.w3.org/ns/prov#wasQuotedFrom
  • euwfd.com