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.

Example Input: Sentence1: Ed's dream was to be a published author. Sentence2: He sent in many manuscripts to different publishers. Sentence3: Every time, his work was rejected. Sentence4: He decided to try one last time to get published. Sentence5: On his last try, the publisher finally accepted his work!
Example Output: Ed, Publisher

Example Input: Sentence1: Tom took up the sport of golf in April. Sentence2: Soon he became frustrated that his golf score was not improving. Sentence3: He decided to seek the help of a golf pro from his club. Sentence4: The pro spent numerous hours with Tom working on fundamentals. Sentence5: Tom quickly shaved ten points from his handicap.
Example Output: Club, Golf pro, Golf, Tom

Example Input: Sentence1: Julia was hungry one night. Sentence2: She put some chicken nuggets in the oven. Sentence3: Then, she went back to her couch to wait. Sentence4: Somehow, she fell asleep. Sentence5: She woke up to the smell of burnt nuggets.
Example Output:
Julia