There are 3 shapes on a 10x10 grid. Which shape is closest to the yellow 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: yellow right_triangle at (3, 2)
Distance from target shape to red trapezoid at (0, 2): 3
Distance from target shape to purple square at (5, 2): 2
Closest shape is the purple square at (5, 2) with distance 2</think>

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