PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • ???The invention relates to the field of the treatment of waste waters containing impurities in suspension, and may be used in petroleum processing, crude oil extraction, petrochemical, chemical, machine-building and other industries.
http://www.w3.org/ns/prov#wasQuotedFrom
  • sumobrain.com