There are 4 shapes on a 3x3 grid. Which shape is closest to the gray 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: gray trapezoid at (0, 2)
Distance from target shape to green trapezoid at (2, 0): 4
Distance from target shape to blue square at (1, 0): 3
Distance from target shape to cyan right_triangle at (0, 1): 1
Closest shape is the cyan right_triangle at (0, 1) with distance 1</think>

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