There are 5 shapes on a 7x7 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 (2, 3)
Distance from target shape to orange square at (6, 1): 6
Distance from target shape to green trapezoid at (5, 4): 4
Distance from target shape to pink square at (2, 6): 3
Distance from target shape to blue rectangle at (3, 1): 3
Closest shape is the pink square at (2, 6) with distance 3</think>

<answer>(2, 6)</answer>