Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To progress towards the goal where each curb has the correct car and is clear, we should move car_3 from behind car_0 to the empty curb_2. This aligns car_0 correctly in curb_0 and paves the way to arrange car_3 next.

New State Description:
Curb_0 has car_0 parked and clear. Curb_1 has car_2 parked and clear. Curb_2 has car_3 parked and clear. Curb_3 has car_1 parked and clear. All curbs contain their respective cars now, but not yet in the goal order. Car_0, car_1, car_2, and car_3 are parked and clear.

Action Chosen:
(move-car-to-curb car_3 car_0 curb_2)
