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<http://webisa.webdatacommons.org/prov/453091880>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/153489987> .
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<http://webisa.webdatacommons.org/153489987>	<http://www.w3.org/ns/prov#value>	"Ethane and other hydrocarbons are produced by the" .