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

<answer>(0, 5)</answer>