There are 6 shapes on a 6x6 grid. Which shape is closest to the purple 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: purple square at (0, 1)
Distance from target shape to pink trapezoid at (0, 2): 1
Distance from target shape to red right_triangle at (2, 0): 3
Distance from target shape to gray square at (5, 0): 6
Distance from target shape to yellow right_triangle at (3, 0): 4
Distance from target shape to orange square at (2, 3): 4
Closest shape is the pink trapezoid at (0, 2) with distance 1</think>

<answer>(0, 2)</answer>