There are 5 shapes on a 6x6 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, 0)
Distance from target shape to yellow rectangle at (5, 1): 1
Distance from target shape to orange trapezoid at (4, 3): 4
Distance from target shape to red rectangle at (2, 0): 3
Distance from target shape to cyan trapezoid at (2, 3): 6
Closest shape is the yellow rectangle at (5, 1) with distance 1</think>

<answer>(5, 1)</answer>