Task: Sentence Ordering
Input (English): Sentence1: Joss considered the exchange student to be like a sister. Sentence2: Joss was afraid she and the new girl would not get along. Sentence3: But when the girl arrived, they liked each other! Sentence4: They soon were shopping and chatting together all the time. Sentence5: Joss's family was hosting an exchange student.
Output (English): 52341