Instructions: In this task, you're given five sentences, numbered 1 through 5. Your job is to generate a title for the story that makes complete sense. The title must be short, with less than three words, use simple language, and include the main topic of the story.
Input: Sentence 1: Rina went to Russia on a student exchange program. Sentence 2: She was nervous at first - Russia was so foreign. Sentence 3: But soon she was very comfortable there. Sentence 4: She even learned to speak fluent Russian! Sentence 5: At the end of the semester, she hated to leave.
Output:
Exchange