There are 6 shapes on a 10x10 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 (5, 0)
Distance from target shape to orange right_triangle at (4, 9): 10
Distance from target shape to red right_triangle at (2, 1): 4
Distance from target shape to gray rectangle at (3, 1): 3
Distance from target shape to purple square at (6, 2): 3
Distance from target shape to pink square at (2, 7): 10
Closest shape is the gray rectangle at (3, 1) with distance 3</think>

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