There are 4 shapes on a 7x7 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, 0)
Distance from target shape to purple rectangle at (1, 4): 5
Distance from target shape to red trapezoid at (2, 2): 2
Distance from target shape to brown right_triangle at (6, 1): 5
Closest shape is the red trapezoid at (2, 2) with distance 2</think>

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