| No TPTP formula. May not be expressible in strict first order. | QoSontology.kif 76-76 | 子類 硬盤驅動器 and 電腦組件 |
| No TPTP formula. May not be expressible in strict first order. | QoSontology.kif 77-77 | 子類 硬盤驅動器 and DigitalDataStorageDevice |
| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 762-762 | 子類 硬盤驅動器 and DiskDrive |
| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 747-747 | 子類 ExternalHardDiskDrive and 硬盤驅動器 |
| No TPTP formula. May not be expressible in strict first order. | ComputerInput.kif 756-756 | 子類 CartridgeHardDiskDrive and 硬盤驅動器 |
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