PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Precious metals can include platinum, palladium, gold or silver and related alloys on cores such as stainless steel, copper, Kovar??, niobium, nickel-iron, molybdenum, tantalum, and titanium.
http://www.w3.org/ns/prov#wasQuotedFrom
  • newequipment.com