There are 2 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, 4)
Distance from target shape to green right_triangle at (2, 3): 1
Closest shape is the green right_triangle at (2, 3) with distance 1</think>

<answer>(2, 3)</answer>