There are 5 shapes on a 5x5 grid. Which shape is closest to the brown trapezoid 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 trapezoid at (3, 2)
Distance from target shape to gray square at (0, 3): 4
Distance from target shape to red right_triangle at (2, 1): 2
Distance from target shape to pink rectangle at (1, 3): 3
Distance from target shape to yellow trapezoid at (2, 3): 2
Closest shape is the red right_triangle at (2, 1) with distance 2</think>

<answer>(2, 1)</answer>