There are 4 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 (1, 6)
Distance from target shape to brown right_triangle at (4, 0): 9
Distance from target shape to red right_triangle at (3, 3): 5
Distance from target shape to blue trapezoid at (0, 5): 2
Closest shape is the blue trapezoid at (0, 5) with distance 2</think>

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