There are 5 shapes on a 7x7 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 (0, 5)
Distance from target shape to blue right_triangle at (2, 2): 5
Distance from target shape to cyan trapezoid at (4, 1): 8
Distance from target shape to pink square at (3, 1): 7
Distance from target shape to green trapezoid at (1, 0): 6
Closest shape is the blue right_triangle at (2, 2) with distance 5</think>

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