About: http://webisa.webdatacommons.org/198901248

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	For other metals, such as copper and alumnium, an oxidized layer on the surface actually protects the metal underneath from further corrosion.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencebuddies.org