There are 3 shapes on a 10x10 grid. Which shape is closest to the yellow 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: yellow rectangle at (6, 7)
Distance from target shape to pink square at (9, 0): 10
Distance from target shape to brown rectangle at (7, 4): 4
Closest shape is the brown rectangle at (7, 4) with distance 4</think>

<answer>(7, 4)</answer>