<http://webisa.webdatacommons.org/341149421>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<archive.org> .
<http://webisa.webdatacommons.org/341149421>	<http://www.w3.org/ns/prov#value>	"materials such as coke, basalt rock and slag are stored in an open area, and are a potential source" .
<http://webisa.webdatacommons.org/341149421>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/458171838>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/341149421> .