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No TPTP formula. May not be expressible in strict first order. Mid-level-ontology.kif 1784-1784 Switch device is a subclass of engineering component
No TPTP formula. May not be expressible in strict first order. engineering.kif 749-749 Relay is a subclass of switch device
No TPTP formula. May not be expressible in strict first order. ComputingBrands.kif 3135-3135 Home button is a subclass of switch device


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