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 (2, 5)
Distance from target shape to pink rectangle at (1, 3): 3
Distance from target shape to purple trapezoid at (2, 0): 5
Distance from target shape to yellow rectangle at (2, 1): 4
Closest shape is the pink rectangle at (1, 3) with distance 3</think>

<answer>(1, 3)</answer>