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Please predict whether this patent is acceptable.PATENT ABSTRACT: An appliance inference device includes a receiver, a first storage, an analyzer, an inference module and a second storage. The first storage stores pieces of power information in each of which a value of electric power received by the receiver is correlated with a time. When a piece of power information stored in the first storage satisfies a prescribed condition, the analyzer classifies the piece of power information as a group corresponding to the condition. The inference module checks the piece of power information classified as the group by the analyzer with appliance information stored in the second storage, thereby inferring the name of an electrical appliance corresponding to the group. The second storage stores the appliance information, with the information correlated with the name of the electrical appliance.