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

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