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Term 1: Term 2:

(subclass Fuel Substance) Mid-level-ontology.kif 1693-1693 汽油 是 物质 的 subclass
(subclass FossilFuel Fuel) Mid-level-ontology.kif 1687-1687 化石燃料 是 汽油 的 subclass
(subclass Charcoal Fuel) Cars.kif 1670-1670 Charcoal 是 汽油 的 subclass


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