There are 5 shapes on a 8x8 grid. Which shape is closest to the yellow trapezoid 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 trapezoid at (5, 3)
Distance from target shape to cyan square at (2, 4): 4
Distance from target shape to red square at (0, 5): 7
Distance from target shape to purple square at (5, 0): 3
Distance from target shape to gray trapezoid at (6, 1): 3
Closest shape is the purple square at (5, 0) with distance 3</think>

<answer>(5, 0)</answer>