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

Action Reasoning:
We need to position passengers on the elevators to their required destinations efficiently. First, we'll move passenger p4, who is already on fast1 on n1, to floor n3, as this matches the goal state.

New State Description:
- fast0: Fast elevator at floor 1 (n1), 0/2 passengers, empty.- fast1: Fast elevator at floor 3 (n3), 1/2 passengers, has passenger p4.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, empty.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On floor 1 (n1).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On floor 0 (n0).- p4: Boarded on fast1 at floor n3.- p5: On floor 2 (n2).

Action Chosen:
move-up-fast(fast1, n1, n3)
