PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • However, specifications for copper and other alloys very often refer to UNS to identify grades specified within the document, or to cross-reference the grades to UNS numbers; this category of alloy equivalents is called ???Official??? in Total Materia terminology.
http://www.w3.org/ns/prov#wasQuotedFrom
  • totalmateria.com