There are 5 shapes on a 9x9 grid. Which shape is closest to the pink 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: pink square at (2, 2)
Distance from target shape to blue right_triangle at (6, 0): 6
Distance from target shape to brown square at (8, 8): 12
Distance from target shape to red square at (5, 6): 7
Distance from target shape to yellow square at (4, 4): 4
Closest shape is the yellow square at (4, 4) with distance 4</think>

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