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 (3, 2)
Distance from target shape to pink trapezoid at (6, 1): 4
Distance from target shape to purple trapezoid at (5, 7): 7
Distance from target shape to yellow rectangle at (7, 0): 6
Distance from target shape to green trapezoid at (4, 0): 3
Closest shape is the green trapezoid at (4, 0) with distance 3</think>

<answer>(4, 0)</answer>