PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • requiring manufacturers, importers and downstream users of chemical substances, including metals and minerals, to establish that the substances can be handled and used
http://www.w3.org/ns/prov#wasQuotedFrom
  • marketplace.org