There are 5 shapes on a 7x7 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 (3, 2)
Distance from target shape to cyan trapezoid at (0, 5): 6
Distance from target shape to yellow square at (5, 4): 4
Distance from target shape to orange trapezoid at (4, 5): 4
Distance from target shape to gray trapezoid at (3, 3): 1
Closest shape is the gray trapezoid at (3, 3) with distance 1</think>

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