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

Action Reasoning:
Passenger p5 is on floor 5 and needs to go to floor 0. We can board p5 onto fast1, which is currently on floor 5 and has capacity.

New State Description:
- fast0: At floor n0, 0/2 passengers.- fast1: At floor n5, 1/2 passengers, with passenger p5 on board.- slow0-0: At floor n2, 0/1 passengers.- p0: On floor n4.- p1: On floor n1.- p2: On floor n5.- p3: On floor n5.- p4: On floor n2.- p5: On fast1, heading to floor n0.- p6: On floor n2.

Action Chosen:
(board p5 fast1 n5 n0 n1)
