There are 4 shapes on a 9x9 grid. Which shape is closest to the blue 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: blue trapezoid at (5, 1)
Distance from target shape to green trapezoid at (3, 4): 5
Distance from target shape to brown rectangle at (0, 1): 5
Distance from target shape to cyan trapezoid at (6, 0): 2
Closest shape is the cyan trapezoid at (6, 0) with distance 2</think>

<answer>(6, 0)</answer>