About: http://webisa.webdatacommons.org/357563534

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	Noble metals, such as platinum, however, are not highly reactive with such chemical etchants and, consequently, noble metals require specialized etching methods and/or highly-reactive chemical etchants.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com