There are 5 shapes on a 6x6 grid. Which shape is closest to the gray 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: gray trapezoid at (1, 0)
Distance from target shape to blue square at (0, 3): 4
Distance from target shape to red rectangle at (3, 0): 2
Distance from target shape to purple rectangle at (1, 4): 4
Distance from target shape to pink square at (2, 0): 1
Closest shape is the pink square at (2, 0) with distance 1</think>

<answer>(2, 0)</answer>