There are 5 shapes on a 10x10 grid. Which shape is closest to the pink 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: pink right_triangle at (9, 7)
Distance from target shape to purple rectangle at (1, 5): 10
Distance from target shape to red square at (2, 2): 12
Distance from target shape to brown square at (9, 5): 2
Distance from target shape to green trapezoid at (9, 4): 3
Closest shape is the brown square at (9, 5) with distance 2</think>

<answer>(9, 5)</answer>