Task: Sentence Ordering
Input (English): Sentence1: He was notoriously lazy. Sentence2: It was Nate's turn to sweep the floor this week. Sentence3: He decided to pay his roommate to do it for him. Sentence4: Nate had a hard time working up the energy to confront him. Sentence5: The roommate took the money and never did the work.
Output (English): 21354