There are 6 shapes on a 9x9 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, 6)
Distance from target shape to yellow trapezoid at (4, 4): 3
Distance from target shape to gray square at (0, 8): 7
Distance from target shape to cyan square at (6, 0): 7
Distance from target shape to orange square at (3, 1): 7
Distance from target shape to pink trapezoid at (2, 0): 9
Closest shape is the yellow trapezoid at (4, 4) with distance 3</think>

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