<http://webisa.webdatacommons.org/prov/94709233>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/356703293> .
<http://webisa.webdatacommons.org/prov/122776881>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/356703293> .
<http://webisa.webdatacommons.org/356703293>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/356703293>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/356703293>	<http://www.w3.org/ns/prov#value>	"Certain metals such as zinc and copper are often recovered by electrowinning techniques in which a solution obtained by leaching an ore concentrate with sulfuric acid is subjected to electrolysis, with resultant deposition of the metal at the electrolytic cathode." .