There are 6 shapes on a 9x9 grid. Which shape is closest to the gray right_triangle in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: gray right_triangle at (0, 0)
Distance from target shape to cyan right_triangle at (7, 4): 11
Distance from target shape to green trapezoid at (5, 8): 13
Distance from target shape to blue right_triangle at (1, 8): 9
Distance from target shape to brown trapezoid at (0, 2): 2
Distance from target shape to pink rectangle at (0, 8): 8
Closest shape is the brown trapezoid at (0, 2) with distance 2</think>

<answer>(0, 2)</answer>