<http://webisa.webdatacommons.org/342016403>	<http://www.w3.org/ns/prov#value>	"lead and other ores which in themselves are worthwhile working." .
<http://webisa.webdatacommons.org/342016403>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/127715409>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/342016403> .
<http://webisa.webdatacommons.org/342016403>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<marxists.org> .