A file management system includes a management server, and an electronic device connectable to the management server through a network. Then, it restores the normal posture by means of a playback technique for controlling various drivers 3D through 7D, using route planning data stored in advance in the memory 101 for restoring the normal posture from a falling posture. The needle hub has a proximal end and a distal end. The compliant pillar is constructed a first material. 7-substituted tetracycline compounds which are substantially free of positional isomers, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted tetracycline compounds are described. Thereby, a hydrogen purge amount can be reduced.