There are 6 shapes on a 9x9 grid. Which shape is closest to the green 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: green trapezoid at (2, 3)
Distance from target shape to brown rectangle at (2, 8): 5
Distance from target shape to yellow rectangle at (7, 2): 6
Distance from target shape to blue trapezoid at (0, 7): 6
Distance from target shape to purple trapezoid at (3, 5): 3
Distance from target shape to cyan rectangle at (3, 8): 6
Closest shape is the purple trapezoid at (3, 5) with distance 3</think>

<answer>(3, 5)</answer>