There are 4 shapes on a 5x5 grid. Which shape is closest to the brown 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: brown rectangle at (2, 3)
Distance from target shape to green rectangle at (3, 4): 2
Distance from target shape to pink rectangle at (0, 4): 3
Distance from target shape to yellow trapezoid at (4, 3): 2
Closest shape is the green rectangle at (3, 4) with distance 2</think>

<answer>(3, 4)</answer>