About: http://webisa.webdatacommons.org/420412115

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	Weathering steel or corten steel is a material that contains a percentage of copper that allows its surface to oxidize.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com