| No TPTP formula. May not be expressible in strict first order. | Cars.kif 91-91 | IntermittentCombustionEngine 是 内燃机 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 96-96 | FourStrokeEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 240-240 | TwoStrokeEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4540-4540 | TwoCylinderEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4548-4548 | FourCylinderEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4556-4556 | SixCylinderEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4564-4564 | EightCylinderEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4857-4857 | MiniCooperEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4969-4969 | ChevroletEngine 是 IntermittentCombustionEngine 的 subclass |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5164-5164 | CosworthEngine 是 IntermittentCombustionEngine 的 subclass |
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