There are 6 shapes on a 9x9 grid. Which shape is closest to the orange 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: orange right_triangle at (4, 0)
Distance from target shape to red trapezoid at (4, 8): 8
Distance from target shape to brown square at (2, 2): 4
Distance from target shape to pink rectangle at (5, 3): 4
Distance from target shape to yellow square at (8, 5): 9
Distance from target shape to gray right_triangle at (1, 2): 5
Closest shape is the brown square at (2, 2) with distance 4</think>

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