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Please predict whether this patent is acceptable.PATENT ABSTRACT: A prediction device according to the present application includes an acquisition unit and a prediction unit. The acquisition unit acquires sensor information related to a first user, the sensor information having been detected with a sensor. The prediction unit predicts an interest of the first user, based on an action pattern obtained from a history of the sensor information of the first user obtained by the acquisition unit, and interest information of user classification into which a second user is classified according to an action pattern obtained from a history of sensor information related to the second user.