There are 6 shapes on a 4x4 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 (1, 2)
Distance from target shape to yellow rectangle at (2, 2): 1
Distance from target shape to pink rectangle at (3, 2): 2
Distance from target shape to purple square at (1, 3): 1
Distance from target shape to red rectangle at (0, 2): 1
Distance from target shape to green right_triangle at (0, 0): 3
Closest shape is the yellow rectangle at (2, 2) with distance 1</think>

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