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

<answer>(1, 1)</answer>