There are 3 shapes on a 10x10 grid. Which shape is closest to the purple 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: purple trapezoid at (9, 1)
Distance from target shape to pink right_triangle at (2, 6): 12
Distance from target shape to orange right_triangle at (7, 2): 3
Closest shape is the orange right_triangle at (7, 2) with distance 3</think>

<answer>(7, 2)</answer>