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

Action Reasoning:
Since curb_1 is empty, the best next step is to move car_2 from double parking behind car_0 to the empty curb_1. This will make curb_0 clear, allowing further steps toward achieving the goal state.

New State Description:
Curb_0 contains car_0, and it is now clear. Curb_1 contains car_2 and is no longer clear. Curb_2 contains car_1, clear. Curb_3 contains car_3, clear. Car_0 is parked and clear. Car_1 is parked and clear. Car_2 is parked and no longer clear. Car_3 is parked and clear.

Action Chosen:
(move-car-to-curb car_2 car_0 curb_1)
