There are 6 shapes on a 4x4 grid. Which shape is closest to the yellow 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: yellow trapezoid at (2, 0)
Distance from target shape to green right_triangle at (3, 3): 4
Distance from target shape to brown square at (3, 1): 2
Distance from target shape to purple right_triangle at (0, 1): 3
Distance from target shape to red right_triangle at (2, 2): 2
Distance from target shape to pink right_triangle at (0, 3): 5
Closest shape is the brown square at (3, 1) with distance 2</think>

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