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 (1, 7)
Distance from target shape to yellow square at (3, 5): 4
Distance from target shape to orange right_triangle at (3, 0): 9
Distance from target shape to purple trapezoid at (7, 4): 9
Distance from target shape to green square at (5, 3): 8
Closest shape is the yellow square at (3, 5) with distance 4</think>

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