There are 5 shapes on a 8x8 grid. Which shape is closest to the pink square 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 square at (5, 2)
Distance from target shape to purple trapezoid at (2, 5): 6
Distance from target shape to blue right_triangle at (7, 6): 6
Distance from target shape to yellow trapezoid at (6, 1): 2
Distance from target shape to green trapezoid at (3, 6): 6
Closest shape is the yellow trapezoid at (6, 1) with distance 2</think>

<answer>(6, 1)</answer>