There are 6 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 (4, 2)
Distance from target shape to orange trapezoid at (2, 3): 3
Distance from target shape to cyan rectangle at (3, 4): 3
Distance from target shape to blue rectangle at (0, 1): 5
Distance from target shape to pink right_triangle at (2, 1): 3
Distance from target shape to red trapezoid at (4, 1): 1
Closest shape is the red trapezoid at (4, 1) with distance 1</think>

<answer>(4, 1)</answer>