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

<answer>(2, 1)</answer>