There are 3 shapes on a 6x6 grid. Which shape is closest to the blue 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: blue right_triangle at (4, 2)
Distance from target shape to brown trapezoid at (0, 5): 7
Distance from target shape to orange rectangle at (5, 4): 3
Closest shape is the orange rectangle at (5, 4) with distance 3</think>

<answer>(5, 4)</answer>