A method for developing a prediction device for predicting a phenotype of a person from imaging data of the person is provided. A second control unit includes a second operation data generation section for generating second operation data in accordance with a direction input operation performed by a player or a motion of a second control unit body included in the second control unit. A digest value computer computes a digest value based on the read document. A point of sale system is associated with the input device to collect information obtained from the input device, associate that information with the unique identifier for the basket, and complete a purchase transaction for all items located in the basket at checkout. The flow control member is moveable from a first position in which the flow control member prevents flow of the first product from the first reservoirs, to a second position in which the flow control member permits flow of the first product.