There are 5 shapes on a 3x3 grid. Which shape is closest to the blue 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: blue trapezoid at (1, 2)
Distance from target shape to green rectangle at (1, 1): 1
Distance from target shape to cyan right_triangle at (2, 0): 3
Distance from target shape to orange trapezoid at (1, 0): 2
Distance from target shape to gray square at (0, 2): 1
Closest shape is the green rectangle at (1, 1) with distance 1</think>

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