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: Ari was a girl I once knew. Sentence2: We dated for a while but she had to go away. Sentence3: Out of the blue one day she said she couldn't talk to me any longer. Sentence4: I sent a bunch of inquisitive messages but she never responded. Sentence5: She went from the closest person in my life to stranger in an instant.
Output:
I (myself), Ari