A white chalk triangle with "S" marks a gray wall.
An outdoor close-up view of a white chalk triangle with an extra line on the top and right sides of the triangle, written on a light gray concrete wall. There is a big "S" in the middle of the triangle, written in white chalk. It looks a bit smudged on the bottom of the "S". Above the triangle are two side-by-side light blue boxes, with a triangle in the left box and an "X" in the right box, written in light blue chalk. Extra-light blue chalk smudges are seen above the two boxes. Next to that, a small dark shadow is seen in the top-right corner. Very light, light blue chalk lines are seen in the bottom right corner. In the left corner, there is a mixture of bark, sticks, rocks, and soil on the ground.