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No TPTP formula. May not be expressible in strict first order. Geography.kif 2915-2915 卫生移除subclass
No TPTP formula. May not be expressible in strict first order. Geography.kif 2920-2920 污水处理卫生subclass
No TPTP formula. May not be expressible in strict first order. Geography.kif 2921-2921 固体废物处理卫生subclass


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