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.

Input: Consider Input: Sentence1: John went to the bookstore. Sentence2: He looked up and down the aisles for an interesting read. Sentence3: After an hour of browsing he stopped in the classics. Sentence4: He picked up a book of Edgar Allan Poe's work. Sentence5: This was exactly what he was hoping to find.

Output: Edgar allan poe, John

Input: Consider Input: Sentence1: Jordan saw the other kids swimming when it was hot in the summer. Sentence2: Jordan had never learned to swim, so he could not go in the water. Sentence3: He was embarrassed he couldn't swim. Sentence4: His mother got him swimming lessons and he practiced. Sentence5: Finally Jordan was able to go in the cool water with the others.

Output: Kids, Jordan, Jordan's mother

Input: Consider Input: Sentence1: Fred couldn't swim. Sentence2: But he didn't want to tell his friends. Sentence3: He was afraid they wouldn't like him. Sentence4: So he got in the water. Sentence5: But he nearly drowned so they had to call the lifeguard.
Output: Lifeguard, Friends, Fred