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: Alex owned a lot of money to a loan shark. Sentence2: He was desperate to make money as fast as he could to repay the loan. Sentence3: He went to the casino and gambled everything he had left. Sentence4: In a lucky strike, he quadrupled his earnings. Sentence5: He then paid the loan shark and swore to never borrow money again.

Ex Output:
Alex

Ex Input:
Sentence1: Yolanda was a fan of baseball. Sentence2: She especially liked the New York Yankees. Sentence3: She wanted to do something to show this fandom. Sentence4: She found a bunch of Yankees statues online. Sentence5: She used them to decorate her front yard in honor of the team.

Ex Output:
New york yankees, Yolanda

Ex Input:
Sentence1: I did dishes last night and came across a really dirty pan. Sentence2: I let it soak in the sink while I cleaned everything else. Sentence3: By the time all else was done, the pan was still very dirty. Sentence4: I had to scrape away at it with steel wool. Sentence5: By the time I went through two wool pads it was clean.

Ex Output:
I (myself)