Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To bring car_3 closer to the goal position in curb_3, the best action is to move car_2 to an empty curb so that car_3 becomes clear and can eventually move. Move car_2 to curb_1 as curb_1 is empty.

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 has car_1 parked, clear. Car_0 is parked, clear. Car_1 is parked, clear. Car_2 is parked, clear. Car_3 is parked, clear.

Action Chosen:
(move-car-to-curb car_2 car_3 curb_1)
