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 (2, 1)
Distance from target shape to gray trapezoid at (4, 2): 3
Distance from target shape to red rectangle at (0, 0): 3
Distance from target shape to pink square at (2, 0): 1
Distance from target shape to cyan square at (3, 4): 4
Distance from target shape to brown trapezoid at (0, 4): 5
Closest shape is the pink square at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>