<http://webisa.webdatacommons.org/prov/47655608>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142178551> .
<http://webisa.webdatacommons.org/142178551>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/45980662>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/142178551> .
<http://webisa.webdatacommons.org/142178551>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<azdhs.gov> .
<http://webisa.webdatacommons.org/142178551>	<http://www.w3.org/ns/prov#value>	"During this time period, chemicals such as mercury or cyanide were commonly used to aid in the removal of metal from the ore." .