There are 6 shapes on a 7x7 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 (0, 1)
Distance from target shape to orange trapezoid at (5, 5): 9
Distance from target shape to red trapezoid at (4, 5): 8
Distance from target shape to blue trapezoid at (0, 6): 5
Distance from target shape to cyan trapezoid at (0, 4): 3
Distance from target shape to purple right_triangle at (4, 2): 5
Closest shape is the cyan trapezoid at (0, 4) with distance 3</think>

<answer>(0, 4)</answer>