Task: Sentence Ordering
Input (English): Sentence1: Tickets went on sale online and the server was very busy. Sentence2: Meghan and Scott wanted to see their favorite band play in a concert. Sentence3: Meghan and Scott were trying hard to buy tickets. Sentence4: They were so relieved. Sentence5: Just when the concert was almost sold out, Meghan found two tickets.
Output (English): 21354