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<http://webisa.webdatacommons.org/prov/400966907>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/292369459> .
<http://webisa.webdatacommons.org/prov/509575560>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/292369459> .
<http://webisa.webdatacommons.org/292369459>	<http://www.w3.org/ns/prov#value>	"Engineers decided it would be safer to burn off the escaping gas instead of releasing it into the atmosphere, as methane is a potent greenhouse gas." .
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