There are 5 shapes on a 7x7 grid. Which shape is closest to the pink 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: pink trapezoid at (3, 5)
Distance from target shape to purple rectangle at (0, 1): 7
Distance from target shape to gray square at (0, 5): 3
Distance from target shape to brown right_triangle at (3, 0): 5
Distance from target shape to green rectangle at (6, 3): 5
Closest shape is the gray square at (0, 5) with distance 3</think>

<answer>(0, 5)</answer>