There are 4 shapes on a 9x9 grid. Which shape is closest to the green rectangle 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 rectangle at (7, 7)
Distance from target shape to cyan trapezoid at (4, 7): 3
Distance from target shape to yellow rectangle at (8, 4): 4
Distance from target shape to orange square at (7, 4): 3
Closest shape is the cyan trapezoid at (4, 7) with distance 3</think>

<answer>(4, 7)</answer>