There are 3 shapes on a 5x5 grid. Which shape is closest to the yellow square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: yellow square at (4, 4)
Distance from target shape to green trapezoid at (4, 3): 1
Distance from target shape to blue trapezoid at (0, 1): 7
Closest shape is the green trapezoid at (4, 3) with distance 1</think>

<answer>(4, 3)</answer>