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

<answer>(3, 5)</answer>