<http://webisa.webdatacommons.org/prov/9557343>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/283099999> .
<http://webisa.webdatacommons.org/283099999>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/283099999>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<dur.ac.uk> .
<http://webisa.webdatacommons.org/283099999>	<http://www.w3.org/ns/prov#value>	"The same basic procedure is then followed for other minerals such as iron and vein minerals including lead." .