There are 5 shapes on a 6x6 grid. Which shape is closest to the pink 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: pink rectangle at (4, 4)
Distance from target shape to purple square at (2, 2): 4
Distance from target shape to brown right_triangle at (2, 4): 2
Distance from target shape to blue trapezoid at (4, 2): 2
Distance from target shape to red square at (1, 2): 5
Closest shape is the brown right_triangle at (2, 4) with distance 2</think>

<answer>(2, 4)</answer>