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

Action Reasoning:
Car_2 and car_1 need to swap places on curbs to help progress towards the goal state. First, move car_2 behind car_3 as the first preliminary step towards swapping car_2 and car_1, using a temporary position effectively.

New State Description:
Curb_0 contains car_0, clear. Curb_1 is clear. Curb_2 contains car_3, not clear, with car_2 double parked behind it. Car_2 is clear behind car_3. Curb_3 contains car_1, clear. Car_0 is parked and clear. Car_1 is parked and clear. Car_2 is double parked but clear. Car_3 is parked and clear but not clear because car_2 is behind it.

Action Chosen:
(move-curb-to-car car_2 curb_1 car_3)
