"Generate a realistic image of a Japanese elementary school gymnasium. Half of the gymnasium should be divided into a grid-like pattern with cloth partitions, resembling a temporary shelter or evacuation area. The other half of the gymnasium should show children playing, engaging in various activities such as running, playing ball games, or other recreational activities. Ensure the details of the gymnasium, such as the basketball hoops, lines on the floor, and windows, are visible. The overall atmosphere should capture the contrast between the organized shelter area and the lively, playful area."