About: http://webisa.webdatacommons.org/101947928

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 metal that is naturally present in the earth's crust, is essential to the development of all forms of life and has been a vital metal in the development of civilisation.
http://www.w3.org/ns/prov#wasQuotedFrom	schoolscience.co.uk