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 (4, 2)
Distance from target shape to green trapezoid at (2, 0): 4
Distance from target shape to yellow square at (0, 2): 4
Distance from target shape to brown trapezoid at (2, 3): 3
Distance from target shape to gray trapezoid at (0, 0): 6
Distance from target shape to pink square at (3, 4): 3
Closest shape is the brown trapezoid at (2, 3) with distance 3</think>

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