There are 3 shapes on a 10x10 grid. Which shape is closest to the purple 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: purple square at (4, 4)
Distance from target shape to brown rectangle at (6, 9): 7
Distance from target shape to yellow trapezoid at (2, 8): 6
Closest shape is the yellow trapezoid at (2, 8) with distance 6</think>

<answer>(2, 8)</answer>