There are 4 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 (9, 6)
Distance from target shape to red trapezoid at (2, 2): 11
Distance from target shape to purple rectangle at (4, 5): 6
Distance from target shape to cyan trapezoid at (1, 7): 9
Closest shape is the purple rectangle at (4, 5) with distance 6</think>

<answer>(4, 5)</answer>