There are 6 shapes on a 7x7 grid. Which shape is closest to the orange square in terms of Manhattan distance? The final answer is the grid position of the closest shape like (row_index, column_index).
<think>Target shape: orange square at (2, 6)
Distance from target shape to purple trapezoid at (3, 0): 7
Distance from target shape to brown rectangle at (6, 4): 6
Distance from target shape to yellow rectangle at (3, 3): 4
Distance from target shape to green rectangle at (4, 5): 3
Distance from target shape to red trapezoid at (4, 4): 4
Closest shape is the green rectangle at (4, 5) with distance 3</think>

<answer>(4, 5)</answer>