There are 3 shapes on a 7x7 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 (2, 6)
Distance from target shape to yellow square at (2, 5): 1
Distance from target shape to purple right_triangle at (1, 2): 5
Closest shape is the yellow square at (2, 5) with distance 1</think>

<answer>(2, 5)</answer>