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

Action Reasoning:
To move towards the goal, board p1 onto fast1 at floor n1 because both p1 and p4 need to reach floor n3, and this elevator is available. Boarding fast1 will minimize wait time, which is costly.

New State Description:
- fast0: Located at floor n0, empty, capacity 2.- fast1: Located at floor n1 with passenger p1 on board, capacity 1 remaining.- slow0-0: Remains at floor n1, empty, capacity 1.- slow1-0: At floor n2, full with passenger p5, capacity 0.- p0: On floor n1.- p1: Boarded on fast1 at floor n1.- p2: On floor n4.- p3: On floor n4.- p4: On floor n1.- p5: Boarded on slow1-0 at floor n2.

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