There are 6 shapes on a 5x5 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 (2, 0)
Distance from target shape to pink right_triangle at (3, 4): 5
Distance from target shape to blue trapezoid at (3, 3): 4
Distance from target shape to brown right_triangle at (3, 0): 1
Distance from target shape to green right_triangle at (1, 4): 5
Distance from target shape to gray square at (4, 1): 3
Closest shape is the brown right_triangle at (3, 0) with distance 1</think>

<answer>(3, 0)</answer>