There are 4 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 (4, 3)
Distance from target shape to orange trapezoid at (3, 3): 1
Distance from target shape to cyan square at (3, 1): 3
Distance from target shape to blue square at (1, 0): 6
Closest shape is the orange trapezoid at (3, 3) with distance 1</think>

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