About: http://webisa.webdatacommons.org/128483538

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	Net by-product credits include revenue from the sale of zinc, gold, silver, and other by-products less the production costs of zinc and refining costs associated with gold and silver.
http://www.w3.org/ns/prov#wasQuotedFrom	yahoo.com