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: Last year Paul was about an inch too short for the big roller coaster. Sentence2: He was confident when he walked up to the measuring stick. Sentence3: Sure enough, he had grown well over an inch. Sentence4: He proudly got on the roller coaster. Sentence5: It was as much fun as he expected it to be!

Ex Output:
Paul

Ex Input:
Sentence1: Jim wandered into someone else's room on the cruise ship. Sentence2: He saw a woman lying on the bed in lingerie. Sentence3: The woman beckoned him closer. Sentence4: Jim thought this couldn't be happening. Sentence5: He turned around and the woman's husband punched Jim.

Ex Output:
Woman, Jim, Woman's husband

Ex Input:
Sentence1: Tom was feeling sick one winter. Sentence2: So he decided to eat an orange. Sentence3: Soon, he felt better. Sentence4: His head and nose felt more clear. Sentence5: Tom decided to eat more oranges.

Ex Output:
Tom