Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To start moving towards the goal state, board passenger p2 onto fast1, as fast1 is already on the same floor (n3) as p2 and can take p2 to the destination floor n5 efficiently.

New State Description:
- **fast0**: At floor 0 (n0), 0 passengers, capacity 2.- **fast1**: At floor 3 (n3), 1 passenger (p2), capacity 2.- **slow0-0**: At floor 2 (n2), 0 passengers, capacity 1.- **p0**: On floor 4 (n4).- **p1**: On floor 1 (n1).- **p2**: On elevator fast1.- **p3**: On floor 4 (n4).- **p4**: On floor 2 (n2).- **p5**: On floor 5 (n5).- **p6**: On floor 2 (n2).

Action Chosen:
(board p2 fast1 n3 n0 n1)
