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

Action Reasoning:
The next action in the plan is to board passenger p2 onto fast1 at floor n4. This aligns with the goal of moving passengers efficiently to their destination floors.

New State Description:
- **fast0**: A fast elevator currently at floor 0 (n0), with 0 passengers and a capacity of 2.- **fast1**: A fast elevator now at floor 4 (n4), with 1 passenger (p2) and a capacity of 2.- **slow0-0**: A slow elevator at floor 1 (n1), with 0 passengers and a capacity of 1.- **slow1-0**: A slow elevator at floor 3 (n3), with 0 passengers and a capacity of 1.- **p0**: On floor 1 (n1).- **p1**: On floor 1 (n1).- **p2**: Onboard fast1 at floor 4 (n4).- **p3**: On floor 4 (n4).- **p4**: On floor 1 (n1).- **p5**: On floor 3 (n3).

Action Chosen:
(board p2 fast1 n4 n0 n1)
