There are 5 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 (2, 7)
Distance from target shape to yellow right_triangle at (4, 7): 2
Distance from target shape to purple trapezoid at (2, 3): 4
Distance from target shape to pink right_triangle at (8, 0): 13
Distance from target shape to blue right_triangle at (0, 1): 8
Closest shape is the yellow right_triangle at (4, 7) with distance 2</think>

<answer>(4, 7)</answer>