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<http://webisa.webdatacommons.org/143337388>	<http://www.w3.org/ns/prov#value>	"Investigators ruled out natural gas, oil and other fuel sources, leaving fine, dry dust produced from milling dry wood." .
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<http://webisa.webdatacommons.org/prov/209492468>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/143337388> .
<http://webisa.webdatacommons.org/143337388>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<kootenayadvertiser.com> .