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: Merdis didn't want to waste her vote on someone she didn't like. Sentence2: She went to the library to research other options. Sentence3: The librarian directed Merdis to the city's Election Board. Sentence4: They explained in detail to Merdis what her options were. Sentence5: Merdis decided to vote herself in as a candidate in the upcoming race.

Ex Output:
Librarian, Merdis

Ex Input:
Sentence1: I walked to my classroom. Sentence2: I was confused since no person waiting outside of the room. Sentence3: My friend eventually came. Sentence4: He told me that class was cancelled for today. Sentence5: I started to head home.

Ex Output:
I (myself), Friend

Ex Input:
Sentence1: Lily went to a nice restaurant. Sentence2: She ordered a steak. Sentence3: To her dismay the steak was rare. Sentence4: Lily was rather upset. Sentence5: She had to send it back.

Ex Output:
Lily