There are 5 shapes on a 9x9 grid. Which shape is closest to the cyan trapezoid 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 trapezoid at (6, 7)
Distance from target shape to blue right_triangle at (6, 8): 1
Distance from target shape to yellow rectangle at (3, 1): 9
Distance from target shape to green right_triangle at (7, 2): 6
Distance from target shape to brown right_triangle at (3, 0): 10
Closest shape is the blue right_triangle at (6, 8) with distance 1</think>

<answer>(6, 8)</answer>