There are 3 shapes on a 7x7 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 (2, 5)
Distance from target shape to gray rectangle at (3, 4): 2
Distance from target shape to brown right_triangle at (0, 2): 5
Closest shape is the gray rectangle at (3, 4) with distance 2</think>

<answer>(3, 4)</answer>