There are 4 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 (1, 4)
Distance from target shape to pink rectangle at (0, 1): 4
Distance from target shape to green square at (0, 0): 5
Distance from target shape to gray trapezoid at (0, 3): 2
Closest shape is the gray trapezoid at (0, 3) with distance 2</think>

<answer>(0, 3)</answer>