A system and method facilitating training machine learning systems utilizing sequential conditional generalized iterative scaling is provided. The display element further includes an undulated layer, which is not formed in the connection terminal between the lower substrate side of the liquid crystal cell and the external circuit board. History data for the information retrieval system is accessed and query data retrieved, which describes the number of times that users have previously selected either or both of the pair of results, and a relative presentation sequence of the pair of results when displayed at each selection. While exchanging position information of the wiper blades through the communication line, the control microcomputers synchronously drive the motors on the basis of a position relationship between both of the wiper blades. The target object includes the silicon layer whose main component is silicon and the patterned resist film formed over the silicon layer.