Attempt Number: 4
Error Message: Action not unique compared to other actions chosen from this state before. Choose a new action

Action Reasoning:
To bring p4 and p5 closer to their goal, board p4 on fast1 at floor 1, then move fast1 to floor 3.

New State Description:
- fast0: Fast elevator at floor 0 (n0), 1/2 passengers, occupied by p0.- fast1: Fast elevator at floor 1 (n1), 1/2 passengers, occupied by p4.- slow0-0: Slow elevator at floor 1 (n1), 0/1 passengers, empty.- slow1-0: Slow elevator at floor 3 (n3), 0/1 passengers, empty.- p0: On fast0 at floor 0 (n0).- p1: On floor 3 (n3).- p2: On floor 2 (n2).- p3: On floor 0 (n0).- p4: On fast1 at floor 1 (n1).- p5: On floor 2 (n2).

Action Chosen:
board(p4, fast1, n1, 0, 1)
