Attempt Number: 3
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
We should move car_1 from behind car_2 to the clear curb_2, allowing car_2 to become clear. This will align car_1 with the goal of being parked at curb_1 after subsequent movements. Since car_3 in curb_3 is already correctly placed, moving car_1 right now untangles the double parking in curb_0.

New State Description:
Curb_0: car_2 is parked and clear now, as there is no car behind it.  Curb_1: car_0 is parked and clear.  Curb_2: car_1 is parked and clear.  Curb_3: car_3 is parked and clear.

Action Chosen:
(move-car-to-curb car_1 car_2 curb_2)
