There are 4 shapes on a 3x3 grid. Which shape is closest to the yellow square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: yellow square at (2, 0)
Distance from target shape to purple trapezoid at (0, 2): 4
Distance from target shape to green square at (1, 2): 3
Distance from target shape to cyan square at (0, 1): 3
Closest shape is the green square at (1, 2) with distance 3</think>

<answer>(1, 2)</answer>