Attempt Number: 6
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Car_0 is clear and double parked behind Car_3, not allowing Car_3 to be moved. We should free Car_3 by moving Car_0 to the empty curb_0 using a valid action to progress toward aligning the cars with the goal state.

New State Description:
Curb_0: Car_0 is parked and clear. Curb_1: Car_1 is parked and clear. Curb_2: Car_2 is parked and clear. Curb_3: Car_3 is parked and now clear after moving Car_0. Car_2: Parked at Curb_2 and clear. Car_1: Parked at Curb_1 and clear. Car_0: Parked at Curb_0 and clear. Car_3: Parked at Curb_3 and clear.

Action Chosen:
(move-car-to-curb car_0 car_3 curb_0)
