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   IconHelmet
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| appearance as argument number 1 |
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| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5163-5163 | manufacturer IconHelmet and IconMotorcyleEquipmentCorporation |
| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5162-5162 | IconHelmet 是 MotorcycleHelmet 的 subclass |
| appearance as argument number 2 |
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| No TPTP formula. May not be expressible in strict first order. | Cars.kif 5164-5164 |
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