PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Some service providers, such as gas or chemical manufacturers, have comprehensive procedures or practices to identify hazards, provide contaminate characterization and decontaminate equipment and piping materials to render them safe for storage, salvage or disposal.
http://www.w3.org/ns/prov#wasQuotedFrom
  • electroiq.com