There are 5 shapes on a 9x9 grid. Which shape is closest to the gray 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: gray trapezoid at (7, 2)
Distance from target shape to green rectangle at (6, 2): 1
Distance from target shape to cyan rectangle at (8, 3): 2
Distance from target shape to red right_triangle at (1, 1): 7
Distance from target shape to purple trapezoid at (6, 4): 3
Closest shape is the green rectangle at (6, 2) with distance 1</think>

<answer>(6, 2)</answer>