A system and method for creation and automatic deployment of personalized, dynamic and interactive voice services, including information derived from on-line analytical processing systems is disclosed. If it is the starting period, an actual shift position that is detected from an output of an output shaft sensor for detecting a rotation position of a motor is set as an instructed shift position. A specified branch and elements hanging therefrom can be highlighted when displayed, such that differences in the manner in which individual elements of the overlapped dendrograms are clustered can be easily recognized. Because the compressor motor operates according to operational conditions of the fan motor, an overload can be prevented. For example, the retention mechanism may utilize threaded components or magnets to retain the decorative portions on the structural support sticks.