There are 5 shapes on a 4x4 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 (1, 0)
Distance from target shape to blue trapezoid at (3, 0): 2
Distance from target shape to cyan square at (2, 0): 1
Distance from target shape to brown right_triangle at (2, 3): 4
Distance from target shape to orange right_triangle at (2, 2): 3
Closest shape is the cyan square at (2, 0) with distance 1</think>

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