A pod for transporting a cassette of semiconductor wafers that is equipped with a cover latch indicator is described. The customized catalog is created in response to a request to search an electronic catalog that has data representative of a plurality of products each having one or more attributes. A broader nonoperating cell of the operating cell in which the cell usage rate indicates a low-load state is rendered an addition candidate, and the operating cell and other narrower operating cells belonging to the nonoperating cell are rendered deletion candidate. The bank notes are sorted into the plurality of stacker units according to the results of the identification, which includes stacking each of one or more change funds into at least one stacker unit and stacking the remaining bank notes into at least one stacker unit. For example, the system can use the category in which a user is searching to chose advertisements.