Draw a simple schematic diagram of a wall, 4 meters wide and 3 meters tall, with a window in the middle 2 meters wide. On both sides of the window, show wooden planks that are 4.5 cm wide (half of 9 cm) and 4 meters long, with 1.5 cm gaps between them. Make it clear, easy to understand, and visually show the planks and the empty space for the window. Use a simple, flat illustration style with top-down view. See more