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<http://webisa.webdatacommons.org/23788433>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<wamu.org> .
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<http://webisa.webdatacommons.org/23788433>	<http://www.w3.org/ns/prov#value>	"As for the benzene, methane and other hydrocarbons, Encana spokesman Doug Hock said: We didn't put those compounds there, nature did." .