There are 4 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 (3, 7)
Distance from target shape to gray rectangle at (7, 3): 8
Distance from target shape to orange trapezoid at (1, 5): 4
Distance from target shape to brown trapezoid at (7, 6): 5
Closest shape is the orange trapezoid at (1, 5) with distance 4</think>

<answer>(1, 5)</answer>