There are 5 shapes on a 3x3 grid. Which shape is closest to the pink 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: pink trapezoid at (1, 1)
Distance from target shape to orange right_triangle at (2, 2): 2
Distance from target shape to purple right_triangle at (0, 0): 2
Distance from target shape to blue rectangle at (0, 2): 2
Distance from target shape to brown square at (0, 1): 1
Closest shape is the brown square at (0, 1) with distance 1</think>

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