There are 5 shapes on a 9x9 grid. Which shape is closest to the orange 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: orange rectangle at (7, 4)
Distance from target shape to gray right_triangle at (2, 6): 7
Distance from target shape to cyan right_triangle at (4, 8): 7
Distance from target shape to purple trapezoid at (4, 2): 5
Distance from target shape to green rectangle at (0, 3): 8
Closest shape is the purple trapezoid at (4, 2) with distance 5</think>

<answer>(4, 2)</answer>