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

Action Reasoning:
Fast0 should board p3 at floor 4 to transport them to floor 5, aligning with the goal of minimizing waiting times for passengers.

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

Action Chosen:
(board p3 fast0 n4 0 1)
