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<http://webisa.webdatacommons.org/295401749>	<http://www.w3.org/ns/prov#value>	"A fuel cell is an electrochemical energy conversion device." .
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<http://webisa.webdatacommons.org/prov/188578111>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/295401749> .