About: http://webisa.webdatacommons.org/31145020

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	Large quantities of oxygen are also used to make other metals, such as copper, lead, and zinc.
http://www.w3.org/ns/prov#wasQuotedFrom	uigi.com