There are 6 shapes on a 10x10 grid. Which shape is closest to the green 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: green trapezoid at (5, 9)
Distance from target shape to blue right_triangle at (1, 8): 5
Distance from target shape to brown square at (0, 7): 7
Distance from target shape to yellow square at (5, 6): 3
Distance from target shape to purple square at (8, 3): 9
Distance from target shape to cyan square at (2, 2): 10
Closest shape is the yellow square at (5, 6) with distance 3</think>

<answer>(5, 6)</answer>