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 (1, 1)
Distance from target shape to red trapezoid at (1, 0): 1
Distance from target shape to pink trapezoid at (0, 1): 1
Distance from target shape to cyan trapezoid at (2, 1): 1
Distance from target shape to blue square at (0, 2): 2
Distance from target shape to brown trapezoid at (1, 2): 1
Closest shape is the red trapezoid at (1, 0) with distance 1</think>

<answer>(1, 0)</answer>