There are 6 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 (2, 2)
Distance from target shape to blue rectangle at (5, 2): 3
Distance from target shape to green square at (2, 4): 2
Distance from target shape to yellow rectangle at (5, 4): 5
Distance from target shape to pink rectangle at (0, 5): 5
Distance from target shape to red right_triangle at (5, 1): 4
Closest shape is the green square at (2, 4) with distance 2</think>

<answer>(2, 4)</answer>