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: 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!

Ex Output:
Ed, Publisher

Ex Input:
Sentence1: I'm a big fan of pixel art. Sentence2: I express my fandom by making bead art of sprites. Sentence3: I melt the beads together so they fuse forever. Sentence4: It is a time-consuming but fun process. Sentence5: Now my walls are covered in bead-based pixel art.

Ex Output:
I (myself)

Ex Input:
Sentence1: Tom was going out with friends. Sentence2: One of them wound up wearing the same shirt as him. Sentence3: They met at the bar so it was hard to change. Sentence4: Both laughed about it a bit and stopped caring. Sentence5: Within minutes it was mostly forgotten.

Ex Output:
Both, Friends, Tom