Task: Sentence Ordering
Input (English): Sentence1: He realized that he'd forgotten his toothbrush. Sentence2: Finally, Ray  asked his friend if he had a spare toothbrush. Sentence3: Ray went to a friend's house for a sleepover. Sentence4: He was unable to brush his teeth! Sentence5: Ray tried to use toothpaste on his finger, but it was no use.
Output (English): 25134