A semiconductor structure has a semiconductor substrate, onin whose top side a structure comprising semiconductor layers, metal layers and insulator layers is appliedimpressed. The apparatus includes a container that has an exit positioned above the liquid. The game machine can provide various overlapping patterns with good visibility and a high game selection capability to a player. The method includes receiving user selections of said items and analyzing the descriptive terms of those items to learn the user’s content preferences. For example, if the OLED display receives no input from the user for a predefined time period, the size of the screen is reduced in order to decrease the power consumption of the OLED display.