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

Action Reasoning:
To move closer to the goal, I will use fast1 to take p3 up to floor 5, which is where p3 needs to be. This step also frees up the fast1 elevator to later assist with other passengers who need to reach higher floors.

New State Description:
- fast0: At floor 2 (n2), 0/2 passengers.- fast1: At floor 5 (n5), 1/2 passengers, with p3 onboard.- slow0-0: At floor 2 (n2), 0/1 passengers.- p0: On floor 2 (n2).- p1: On floor 1 (n1).- p2: On floor 5 (n5).- p3: Onboard fast1 at floor 5.- p4: On floor 2 (n2).- p5: On floor 0 (n0).- p6: On floor 2 (n2).

Action Chosen:
(move-up-fast fast1 n4 n5)
