There are 4 shapes on a 6x6 grid. Which shape is closest to the orange rectangle 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 rectangle at (0, 2)
Distance from target shape to gray rectangle at (5, 5): 8
Distance from target shape to yellow square at (5, 3): 6
Distance from target shape to brown right_triangle at (4, 5): 7
Closest shape is the yellow square at (5, 3) with distance 6</think>

<answer>(5, 3)</answer>