Attempt Number: 2
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
Passenger p4 is already onboard fast0 at floor 1. The best action is to move fast0 up to floor 3 where p4 needs to go, as it minimizes the number of moves and helps reach the goal state efficiently.

New State Description:
- Elevator fast0 is at floor 3 (n3) with passenger p4 still onboard, capacity 1/2.- Elevator fast1 remains at floor 2 (n2), empty, capacity 2.- Elevator slow0-0 remains at floor 0 (n0), empty, capacity 1.- Elevator slow1-0 remains 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 floor 0 (n0).- Passenger p4 is onboard fast0 now at floor 3.- Passenger p5 is on floor 2 (n2).

Action Chosen:
move-up-fast(fast0, n1, n3)
