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

Action Reasoning:
Passenger p1 needs to be moved up to floor 3, while fast0 is already at floor 1. Therefore, we board passenger p1 onto fast0, in preparation for moving up to floor 3.

New State Description:
- Elevator fast0 is at floor 1 (n1), with 1 passenger (p1), capacity 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 aboard fast0 at floor 1 (n1).- Passenger p2 is on floor 2 (n2).- Passenger p3 is on floor 0 (n0).- Passenger p4 is on floor 1 (n1).- Passenger p5 is on floor 2 (n2).

Action Chosen:
board(p1, fast0, n1, 0, 1)
