There are 6 shapes on a 10x10 grid. Which shape is closest to the orange 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: orange rectangle at (1, 8)
Distance from target shape to blue right_triangle at (2, 9): 2
Distance from target shape to cyan rectangle at (4, 5): 6
Distance from target shape to green trapezoid at (7, 8): 6
Distance from target shape to yellow trapezoid at (4, 7): 4
Distance from target shape to brown rectangle at (8, 5): 10
Closest shape is the blue right_triangle at (2, 9) with distance 2</think>

<answer>(2, 9)</answer>