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

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