About: http://webisa.webdatacommons.org/296541706

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	However, ordinary pure metals such as Pt, Al, or Au or a double-layer metal or an alloy of pure metals may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com