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 is on floor 4 and needs to get to floor 0. Fast elevator fast0 is already on floor 4, making it cost-effective to board p3 and head down to n0 before it moves.

New State Description:
- Elevator fast0 is at floor 4 (n4), with 1 passenger (p3), capacity 2.- Elevator fast1 is at floor 2 (n2), empty, 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 fast0 at n4.- Passenger p4 is on floor 1 (n1).- Passenger p5 is on floor 2 (n2).

Action Chosen:
board(p3, fast0, n4, 0, 1)
