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Term 1: Term 2:

(subclass ChemicalBase CompoundSubstance) Mid-level-ontology.kif 8738-8738 化学基地 是 复合物质 的 subclass
(subclass Alkaloid ChemicalBase) Mid-level-ontology.kif 8642-8642 生物碱 是 化学基地 的 subclass


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