There are 4 shapes on a 9x9 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 (0, 7)
Distance from target shape to purple right_triangle at (4, 1): 10
Distance from target shape to gray rectangle at (1, 1): 7
Distance from target shape to yellow trapezoid at (6, 8): 7
Closest shape is the gray rectangle at (1, 1) with distance 7</think>

<answer>(1, 1)</answer>