There are 6 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 (5, 0)
Distance from target shape to red square at (1, 1): 5
Distance from target shape to orange right_triangle at (1, 4): 8
Distance from target shape to blue right_triangle at (3, 4): 6
Distance from target shape to brown rectangle at (7, 4): 6
Distance from target shape to pink square at (0, 6): 11
Closest shape is the red square at (1, 1) with distance 5</think>

<answer>(1, 1)</answer>