There are 4 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 (4, 5): 1
Distance from target shape to green right_triangle at (2, 2): 4
Distance from target shape to cyan trapezoid at (3, 3): 2
Closest shape is the orange trapezoid at (4, 5) with distance 1</think>

<answer>(4, 5)</answer>