There are 5 shapes on a 9x9 grid. Which shape is closest to the yellow 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: yellow square at (2, 0)
Distance from target shape to brown right_triangle at (7, 2): 7
Distance from target shape to cyan square at (2, 6): 6
Distance from target shape to pink right_triangle at (2, 3): 3
Distance from target shape to green square at (0, 1): 3
Closest shape is the pink right_triangle at (2, 3) with distance 3</think>

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