There are 5 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 (9, 8)
Distance from target shape to blue right_triangle at (6, 1): 10
Distance from target shape to pink right_triangle at (5, 3): 9
Distance from target shape to orange rectangle at (8, 6): 3
Distance from target shape to cyan rectangle at (7, 5): 5
Closest shape is the orange rectangle at (8, 6) with distance 3</think>

<answer>(8, 6)</answer>