A part of a distal end portion of an airbag is tucked into an interior thereof. The striking mechanism includes a locking device, which is provided with at least one rotating bolt. The first electrode layer includes a first electrode material disposed such that an end surface thereof is exposed in a first side region of the laminated structure and a second electrode material having an insulating film formed on an end surface in a second side region of the laminated structure. A timer is established that maintains settings despite changes in the type of inferred data. The method includes causing a plurality of RFID tags to enter a ready state, causing the RFID tags to enter an accessible state in turn, transmitting the task to the RFID tags, utilizing the RFID tags to jointly process the task, and reading a result from the RFID tags having processed the task.