There are 5 shapes on a 7x7 grid. Which shape is closest to the yellow rectangle 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 rectangle at (0, 3)
Distance from target shape to red trapezoid at (2, 2): 3
Distance from target shape to brown rectangle at (4, 0): 7
Distance from target shape to blue right_triangle at (4, 2): 5
Distance from target shape to purple right_triangle at (4, 4): 5
Closest shape is the red trapezoid at (2, 2) with distance 3</think>

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