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

Action Reasoning:
Car5 is currently double parked and clear behind Car3. The best move is to relocate Car5 to free up Car3, bringing Car5 to park behind Car0 in Curb_0 according to the goal requirement.

New State Description:
Curb_0: Contains car0, parked and blocked; Car5 is double parked behind it.  Curb_1: Contains car2, parked and clear.  Curb_2: Contains car1, parked and clear.  Curb_3: Contains car3, parked and clear.  Curb_4: Contains car4, parked and clear.  Car0: In curb0, blocked by car5 parked behind.  Car1: In curb2, clear.  Car2: In curb1, clear.  Car3: In curb3, clear.  Car4: In curb4, clear.  Car5: Behind car0 in curb0, double parked but blocking car0.

Action Chosen:
(move-car-to-car car5 car3 car0)
