PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • This product is rated safe for aluminum and other metals such as cast iron, copper, and steel, and includes corrosion protection.
http://www.w3.org/ns/prov#wasQuotedFrom
  • inspectapedia.com