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

<answer>(2, 5)</answer>