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

Action Reasoning:
To get closer to the goal state, prioritize tasks that free up capacity and align with passenger final destinations. Fast elevator 0 must drop p3 at floor 5 due to passenger 5's position there, and it will open up capacity.

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

Action Chosen:
(move-up-fast fast0 n4 n5)
