There are 3 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 (1, 4)
Distance from target shape to green rectangle at (4, 0): 7
Distance from target shape to blue trapezoid at (2, 3): 2
Closest shape is the blue trapezoid at (2, 3) with distance 2</think>

<answer>(2, 3)</answer>