There are 6 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 (0, 2)
Distance from target shape to gray square at (3, 0): 5
Distance from target shape to pink square at (1, 0): 3
Distance from target shape to blue trapezoid at (0, 5): 3
Distance from target shape to orange trapezoid at (2, 4): 4
Distance from target shape to purple square at (4, 2): 4
Closest shape is the pink square at (1, 0) with distance 3</think>

<answer>(1, 0)</answer>