There are 5 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 (0, 0)
Distance from target shape to cyan square at (5, 4): 9
Distance from target shape to purple right_triangle at (4, 6): 10
Distance from target shape to orange rectangle at (1, 5): 6
Distance from target shape to green square at (2, 6): 8
Closest shape is the orange rectangle at (1, 5) with distance 6</think>

<answer>(1, 5)</answer>