There are 6 shapes on a 5x5 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 (2, 3)
Distance from target shape to blue square at (0, 4): 3
Distance from target shape to brown trapezoid at (4, 4): 3
Distance from target shape to purple right_triangle at (0, 2): 3
Distance from target shape to gray rectangle at (0, 3): 2
Distance from target shape to cyan trapezoid at (4, 2): 3
Closest shape is the gray rectangle at (0, 3) with distance 2</think>

<answer>(0, 3)</answer>