There are 6 shapes on a 6x6 grid. Which shape is closest to the brown trapezoid in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: brown trapezoid at (4, 4)
Distance from target shape to orange trapezoid at (0, 2): 6
Distance from target shape to red square at (4, 3): 1
Distance from target shape to pink trapezoid at (0, 4): 4
Distance from target shape to green trapezoid at (3, 1): 4
Distance from target shape to blue rectangle at (4, 0): 4
Closest shape is the red square at (4, 3) with distance 1</think>

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