There are 6 shapes on a 10x10 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 (2, 5)
Distance from target shape to green trapezoid at (4, 9): 6
Distance from target shape to pink rectangle at (6, 4): 5
Distance from target shape to blue right_triangle at (0, 7): 4
Distance from target shape to red rectangle at (5, 1): 7
Distance from target shape to purple trapezoid at (9, 0): 12
Closest shape is the blue right_triangle at (0, 7) with distance 4</think>

<answer>(0, 7)</answer>