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.

Ex Input:
Sentence1: The man apologized. Sentence2: The woman said she accepted. Sentence3: The two talked for a while. Sentence4: The man excused himself. Sentence5: He could tell his company was not wanted.

Ex Output:
Woman, Woman

Ex Input:
Sentence1: My wife hates her job. Sentence2: She is a teacher to sixth graders and she always gets headaches. Sentence3: She complains that they are way to loud and don't listen. Sentence4: She asked the principal if she could teach at the high school level. Sentence5: The principal allowed her to switch to the junior year, she's happy.

Ex Output:
I (myself), School, Principal, Sixth graders, Wife

Ex Input:
Sentence1: Arthur King wrote three best sellers, now he's bored. Sentence2: He saw an ad online about a community of pick-up artist. Sentence3: He paid for a session of pick-up a girl training. Sentence4: First he sat in on a lecture about how to flirt with girls. Sentence5: Next he went to a club to practice what her learned.

Ex Output:
Arthur king, Girls, Girl, Community