| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4367-4367 | Helmet e' uma sub-classe de SafetyDevice |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4368-4368 | Helmet e' uma sub-classe de CoveringFn Head |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4372-4372 | MotorcycleHelmet e' uma sub-classe de Helmet |
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