There are 4 shapes on a 5x5 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 (3, 2)
Distance from target shape to orange rectangle at (4, 0): 3
Distance from target shape to yellow right_triangle at (2, 0): 3
Distance from target shape to gray right_triangle at (1, 3): 3
Closest shape is the orange rectangle at (4, 0) with distance 3</think>

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