There are 5 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 (1, 0)
Distance from target shape to purple square at (4, 3): 6
Distance from target shape to green trapezoid at (1, 3): 3
Distance from target shape to yellow rectangle at (4, 4): 7
Distance from target shape to orange right_triangle at (3, 3): 5
Closest shape is the green trapezoid at (1, 3) with distance 3</think>

<answer>(1, 3)</answer>