There are 6 shapes on a 6x6 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 (1, 4)
Distance from target shape to gray rectangle at (0, 5): 2
Distance from target shape to orange rectangle at (0, 2): 3
Distance from target shape to purple rectangle at (2, 4): 1
Distance from target shape to brown right_triangle at (5, 3): 5
Distance from target shape to green trapezoid at (3, 4): 2
Closest shape is the purple rectangle at (2, 4) with distance 1</think>

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