There are 6 shapes on a 8x8 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 (6, 5)
Distance from target shape to pink rectangle at (4, 4): 3
Distance from target shape to gray square at (3, 3): 5
Distance from target shape to green trapezoid at (6, 1): 4
Distance from target shape to brown square at (7, 2): 4
Distance from target shape to red square at (6, 0): 5
Closest shape is the pink rectangle at (4, 4) with distance 3</think>

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