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 (7, 2)
Distance from target shape to pink trapezoid at (0, 2): 7
Distance from target shape to red rectangle at (6, 4): 3
Distance from target shape to purple rectangle at (7, 3): 1
Distance from target shape to cyan square at (4, 1): 4
Distance from target shape to orange rectangle at (1, 6): 10
Closest shape is the purple rectangle at (7, 3) with distance 1</think>

<answer>(7, 3)</answer>