There are 6 shapes on a 6x6 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 (4, 2)
Distance from target shape to pink square at (2, 2): 2
Distance from target shape to blue rectangle at (3, 1): 2
Distance from target shape to orange right_triangle at (2, 4): 4
Distance from target shape to gray trapezoid at (5, 2): 1
Distance from target shape to cyan rectangle at (1, 2): 3
Closest shape is the gray trapezoid at (5, 2) with distance 1</think>

<answer>(5, 2)</answer>