There are 5 shapes on a 6x6 grid. Which shape is closest to the orange square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: orange square at (1, 0)
Distance from target shape to red right_triangle at (4, 3): 6
Distance from target shape to purple right_triangle at (1, 1): 1
Distance from target shape to blue square at (1, 5): 5
Distance from target shape to yellow square at (2, 0): 1
Closest shape is the purple right_triangle at (1, 1) with distance 1</think>

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