There are 5 shapes on a 5x5 grid. Which shape is closest to the blue 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: blue rectangle at (3, 4)
Distance from target shape to brown square at (4, 1): 4
Distance from target shape to cyan rectangle at (4, 0): 5
Distance from target shape to purple trapezoid at (0, 4): 3
Distance from target shape to gray square at (0, 2): 5
Closest shape is the purple trapezoid at (0, 4) with distance 3</think>

<answer>(0, 4)</answer>