There are 3 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 (2, 3)
Distance from target shape to green right_triangle at (4, 2): 3
Distance from target shape to red trapezoid at (0, 3): 2
Closest shape is the red trapezoid at (0, 3) with distance 2</think>

<answer>(0, 3)</answer>