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

Action Reasoning:
We need to move passengers p1 and p4 from floor 1 to floor 3, matching their goal positions. Since both fast elevators are available and can hold multiple passengers, using fast1 to move them both is efficient and minimizes elevator usage.

New State Description:
- Elevator fast0 is at floor 0 (n0), empty, capacity 2.- Elevator fast1 is at floor 1 (n1), with passenger p1 on board, capacity 1 remaining.- Elevator slow0-0 is at floor 0 (n0), empty, capacity 1.- Elevator slow1-0 is at floor 2 (n2), empty, capacity 1.- Passenger p0 is at floor 0 (n0).- Passenger p1 is on board fast1.- Passenger p2 is at floor 2 (n2).- Passenger p3 is at floor 0 (n0).- Passenger p4 is on floor 1 (n1).- Passenger p5 is at floor 2 (n2).

Action Chosen:
board(p1, fast1, n1, 0, 1)
