Task: Sentence Ordering
Input (English): Sentence1: The vet treated her cat's cancer the best they could. Sentence2: The vet told Rachel that her cat had developed cancer. Sentence3: Suddenly, the cat was acting more lethargic and losing weight. Sentence4: Rachel adopted a cat over ten Years ago. Sentence5: Concerned, Rachel took her cat to the vet.
Output (English): 54213