Attempt Number: 6
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
The best next step is to move Car_2 to Curb_3, which is currently empty allowing Car_2 to be placed in a valid spot while maintaining clear curbs. Car_3 should remain at Curb_2, as this matches the goal state.

New State Description:
- Curb_0: Car_1 is parked on it and is clear.- Curb_1: Car_0 is parked on it and is clear.- Curb_2: is clear and empty.- Curb_3: Car_3 is parked on it and is clear.- Car_1: is parked at curb_0 and is clear.- Car_3: is parked at curb_3 and is clear.- Car_2: is not present in any curb.- Car_0: is parked at curb_1 and is clear.

Action Chosen:
(move-curb-to-curb car3 curb_2 curb_3)
