| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2122-2122 | Passenger railcar is a subclass of rolling stock |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2123-2123 | Passenger railcar is a subclass of passenger vehicle |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2148-2148 | Business railcar is a subclass of passenger railcar |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2161-2161 | Crew dorm car is a subclass of passenger railcar |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2181-2181 | Gallery car is a subclass of passenger railcar |
| No TPTP formula. May not be expressible in strict first order. | Transportation.kif 2203-2203 | Motor railcar is a subclass of passenger railcar |
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