There are 6 shapes on a 10x10 grid. Which shape is closest to the yellow 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: yellow square at (2, 9)
Distance from target shape to pink square at (5, 2): 10
Distance from target shape to purple trapezoid at (3, 2): 8
Distance from target shape to green trapezoid at (3, 0): 10
Distance from target shape to blue right_triangle at (9, 6): 10
Distance from target shape to red trapezoid at (8, 1): 14
Closest shape is the purple trapezoid at (3, 2) with distance 8</think>

<answer>(3, 2)</answer>