There are 6 shapes on a 3x3 grid. Which shape is closest to the blue rectangle 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 rectangle at (0, 1)
Distance from target shape to yellow rectangle at (1, 0): 2
Distance from target shape to green trapezoid at (0, 2): 1
Distance from target shape to orange right_triangle at (1, 1): 1
Distance from target shape to brown right_triangle at (2, 2): 3
Distance from target shape to purple rectangle at (1, 2): 2
Closest shape is the green trapezoid at (0, 2) with distance 1</think>

<answer>(0, 2)</answer>