There are 4 shapes on a 7x7 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 (1, 5)
Distance from target shape to brown square at (4, 1): 7
Distance from target shape to orange trapezoid at (2, 0): 6
Distance from target shape to purple right_triangle at (5, 1): 8
Closest shape is the orange trapezoid at (2, 0) with distance 6</think>

<answer>(2, 0)</answer>