You will be given a definition of a task first, then some input of the task.
In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.

Sentence1: In 6th grade I had a boyfriend I liked very much. Sentence2: I went out of town on a family vacation. Sentence3: While I was gone, I bought him a nice souvenir with my own money. Sentence4: When I got back, I found out he didn't like me any more. Sentence5: I kept the souvenir for myself.
Output:
I (myself), Boyfriend