| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4548-4548 | TwoCylinderEngine e' uma sub-classe de IntermittentCombustionEngine |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4586-4586 | HarleyDavidsonKnuckleheadEngine e' uma sub-classe de TwoCylinderEngine |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 4690-4690 | HarleyDavidsonPanheadEngine e' uma sub-classe de TwoCylinderEngine |
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