There are 5 shapes on a 5x5 grid. Which shape is closest to the pink trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: pink trapezoid at (0, 4)
Distance from target shape to gray rectangle at (1, 3): 2
Distance from target shape to yellow square at (4, 3): 5
Distance from target shape to purple rectangle at (4, 1): 7
Distance from target shape to brown rectangle at (3, 4): 3
Closest shape is the gray rectangle at (1, 3) with distance 2</think>

<answer>(1, 3)</answer>