There are 6 shapes on a 10x10 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 (5, 9)
Distance from target shape to gray square at (4, 4): 6
Distance from target shape to purple trapezoid at (3, 2): 9
Distance from target shape to red rectangle at (0, 1): 13
Distance from target shape to orange trapezoid at (8, 0): 12
Distance from target shape to green square at (2, 5): 7
Closest shape is the gray square at (4, 4) with distance 6</think>

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