There are 6 shapes on a 9x9 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 (0, 0)
Distance from target shape to green right_triangle at (5, 0): 5
Distance from target shape to gray trapezoid at (7, 2): 9
Distance from target shape to brown trapezoid at (3, 5): 8
Distance from target shape to cyan trapezoid at (8, 5): 13
Distance from target shape to orange trapezoid at (8, 2): 10
Closest shape is the green right_triangle at (5, 0) with distance 5</think>

<answer>(5, 0)</answer>