There are 4 shapes on a 9x9 grid. Which shape is closest to the pink 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: pink rectangle at (6, 4)
Distance from target shape to green rectangle at (4, 0): 6
Distance from target shape to blue trapezoid at (3, 2): 5
Distance from target shape to brown square at (0, 1): 9
Closest shape is the blue trapezoid at (3, 2) with distance 5</think>

<answer>(3, 2)</answer>