There are 4 shapes on a 9x9 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 (0, 4)
Distance from target shape to cyan right_triangle at (0, 7): 3
Distance from target shape to red trapezoid at (8, 4): 8
Distance from target shape to purple trapezoid at (4, 7): 7
Closest shape is the cyan right_triangle at (0, 7) with distance 3</think>

<answer>(0, 7)</answer>