(subclass ExternalHardDiskDrive HardDiskDrive) | ComputerInput.kif 747-747 | ExternalHardDiskDrive は HardDiskDrive の subclass では %n |
(subclass ExternalHardDiskDrive ExternalDiskDrive) | ComputerInput.kif 748-748 | ExternalHardDiskDrive は ExternalDiskDrive の subclass では %n |