There are 3 shapes on a 3x3 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 (0, 1)
Distance from target shape to yellow rectangle at (1, 0): 2
Distance from target shape to pink rectangle at (1, 2): 2
Closest shape is the yellow rectangle at (1, 0) with distance 2</think>

<answer>(1, 0)</answer>