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

Action Reasoning:
To move closer to the goal state, we should first clear the path for car_1 to reach curb_1. We will move car_1 from behind car_2 to the empty curb_3. This will clear car_2 at curb_1 and allow car_1 to be repositioned to the correct curb later.

New State Description:
Curb_0 contains car_0, clear. Curb_1 contains car_2, clear. Curb_2 contains car_3, clear. Curb_3 contains car_1, clear. Car_0 is parked and clear. Car_1 is parked and clear. Car_2 is parked and clear. Car_3 is parked and clear.

Action Chosen:
(move-car-to-curb car_1 car_2 curb_3)
