About: http://webisa.webdatacommons.org/221995156

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Presently preferred metals include, but are not limited to, gold, silver, platinum, palladium, nickel, aluminum, copper, stainless steel, and other iron alloys.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com