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: Terry was going through a big issue. Sentence2: He started questioning everything around him. Sentence3: He started believing that he is the only one who exists. Sentence4: No matter how his friends and family tried to convince him he wasn't. Sentence5: He never would budge.

Ex Output:
Friends, Family, Terry

Ex Input:
Sentence1: Tom was at the beach. Sentence2: He found a bottle with a message in it. Sentence3: The message had a contact e-mail. Sentence4: Tom e-mailed it and actually got a response. Sentence5: It was a pretty fun experience for him.

Ex Output:
Tom

Ex Input:
Sentence1: Last week my aunt got an interesting idea. Sentence2: She decided to make ice cream from scratch. Sentence3: She churned the ingredients herself and created a new recipe. Sentence4: It was delicious. Sentence5: Everyone in the family really loved it.

Ex Output:
Everyone in the family, My aunt