A buoyant motivational object used to play with a dog or child. The composition does not include any potassium hypochlorite, sodium hypochlorite, lithium hypochlorite, N-halogenated compounds, peroxides, persulfates, hydantoins, isocyanurates, or carboxylic acids that also have hydroxyl, amino, amido, imino, or imido groups. The program has a virtual interface VIF 1 14, to the virtual machines, a network interface 19 to enable communication between the virtual machines and other nodes of a network, and an infrastructure management interface 8, invisible to the virtual machines. A transistor is provided which includes an oxide semiconductor and has a trench structure including a trench for a gate electrode and a trench for element isolation. The grid element may be placed concentrically or non-concentrically with respect to the first and second electrodes. A driving element is connected to the LEDs to reduce manufacturing costs for the driving element circuits, thereby reducing manufacturing costs of the backlight assembly.