There are 4 shapes on a 10x10 grid. Which shape is closest to the orange square 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 square at (4, 7)
Distance from target shape to blue rectangle at (5, 3): 5
Distance from target shape to purple right_triangle at (8, 3): 8
Distance from target shape to yellow trapezoid at (7, 8): 4
Closest shape is the yellow trapezoid at (7, 8) with distance 4</think>

<answer>(7, 8)</answer>