There are 4 shapes on a 5x5 grid. Which shape is closest to the cyan 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: cyan rectangle at (4, 1)
Distance from target shape to blue right_triangle at (3, 4): 4
Distance from target shape to purple rectangle at (3, 0): 2
Distance from target shape to gray trapezoid at (4, 2): 1
Closest shape is the gray trapezoid at (4, 2) with distance 1</think>

<answer>(4, 2)</answer>