There are 5 shapes on a 5x5 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 (4, 0)
Distance from target shape to green right_triangle at (3, 2): 3
Distance from target shape to blue right_triangle at (4, 1): 1
Distance from target shape to gray rectangle at (3, 1): 2
Distance from target shape to red square at (0, 1): 5
Closest shape is the blue right_triangle at (4, 1) with distance 1</think>

<answer>(4, 1)</answer>