There are 2 shapes on a 9x9 grid. Which shape is closest to the pink trapezoid 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 trapezoid at (4, 7)
Distance from target shape to blue right_triangle at (8, 6): 5
Closest shape is the blue right_triangle at (8, 6) with distance 5</think>

<answer>(8, 6)</answer>