About: http://webisa.webdatacommons.org/370391815

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	Copper is a commodity that can be bought and sold via various copper commodity contracts at commodities exchanges.
http://www.w3.org/ns/prov#wasQuotedFrom	stockrockandroll.com