There are 6 shapes on a 7x7 grid. Which shape is closest to the purple 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: purple square at (2, 5)
Distance from target shape to pink rectangle at (4, 0): 7
Distance from target shape to orange right_triangle at (4, 5): 2
Distance from target shape to gray square at (0, 2): 5
Distance from target shape to cyan right_triangle at (5, 5): 3
Distance from target shape to green trapezoid at (4, 2): 5
Closest shape is the orange right_triangle at (4, 5) with distance 2</think>

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