| No TPTP formula. May not be expressible in strict first order. | engineering.kif 771-771 | 子類 軸 and EngineeringComponent |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 335-335 | 子類 Crankshaft and 軸 |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 1653-1653 | 子類 Camshaft and 軸 |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 2325-2325 | 子類 Driveshaft and 軸 |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 3988-3988 | 子類 SteeringColumn and 軸 |
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