There are 3 shapes on a 4x4 grid. Which shape is closest to the yellow rectangle 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 rectangle at (3, 2)
Distance from target shape to pink rectangle at (1, 3): 3
Distance from target shape to orange trapezoid at (0, 3): 4
Closest shape is the pink rectangle at (1, 3) with distance 3</think>

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