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

Action Reasoning:
Moving p2 closer to p2's destination at n2 makes progress towards the goal with minimal cost using fast0 efficiently.

New State Description:
- Elevator fast0 is on floor 4 (n4), holding 1 passenger with capacity 1/2.- Elevator fast1 remains on floor 3 (n3), empty with capacity 0/2.- Elevator slow0-0 is on floor 0 (n0), empty with capacity 0/1.- Elevator slow1-0 is on floor 3 (n3), empty with capacity 0/1.- Passenger p0 is on floor 0 (n0).- Passenger p1 remains on floor 1 (n1).- Passenger p2 is boarded on fast0 on floor 4 (n4).- Passenger p3 remains on floor 4 (n4).- Passenger p4 is on floor 1 (n1).- Passenger p5 is on floor 3 (n3).

Action Chosen:
board(p2, fast0, n4, 0, 1)
