Attempt Number: 2
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Move car3 from behind car0 to the clear curb_0. This action frees car0, making it clear, and places car3 in a position to eventually move to its goal curb_3. This maximizes flexibility for further moves.

New State Description:
- Curb_0: Car_3 is parked on it and is clear.- Curb_1: Car_1 is parked on it and is clear.- Curb_2: Car_2 is parked on it and is clear.- Curb_3: Car_0 is parked on it and is clear.

Action Chosen:
(move-car-to-curb car3 car0 curb_0)
