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

Action Reasoning:
Car 2 needs to be in curb_2, and curb_3 is currently where car 1 is, so move car_1 to an empty curb. We'll use its position to rearrange the remaining cars.

New State Description:
Curb_0 has car_0 parked, clear. Curb_1 has car_2 parked, clear. Curb_2 has car_3 parked, clear. Curb_3 is empty, ready to receive car_2. Car_1 needs a new position to allow other swaps.

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