There are 4 shapes on a 5x5 grid. Which shape is closest to the yellow 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: yellow rectangle at (4, 4)
Distance from target shape to cyan trapezoid at (1, 4): 3
Distance from target shape to blue trapezoid at (3, 4): 1
Distance from target shape to brown rectangle at (3, 2): 3
Closest shape is the blue trapezoid at (3, 4) with distance 1</think>

<answer>(3, 4)</answer>