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

Action Reasoning:
Passenger p3 needs to reach floor 0. Using fast1 to move p3 directly from floor 4 to floor 0 is optimal due to its capacity and speed, which minimizes cost by preventing intermediate stops.

New State Description:
- Elevator fast0 is at floor 1 (n1), empty, capacity 2.- Elevator fast1 is at floor 4 (n4), with passenger p3, capacity 2.- Elevator slow0-0 is at floor 0 (n0), empty, capacity 1.- Elevator slow1-0 is at floor 2 (n2), empty, capacity 1.- Passenger p0 is on floor 0 (n0).- Passenger p1 is on floor 1 (n1).- Passenger p2 is on floor 2 (n2).- Passenger p3 is on board fast1.- Passenger p4 is on floor 1 (n1).- Passenger p5 is on floor 2 (n2).

Action Chosen:
board(p3, fast1, n4, 0, 1)
