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: I was super nervous for my science test yesterday. Sentence2: I studied very hard but it didn't calm my nerves enough. Sentence3: As I walked into the room I wanted the test over with. Sentence4: Finally I started taking the test. Sentence5: Thankfully it wasn't as hard as I thought it would be.

Output: I (myself)

Input: Consider Input: Sentence1: Kate was bored so she decided to watch TV. Sentence2: She flipped through the channels looking for a show. Sentence3: In her desperation she checked the channels she never watched. Sentence4: The Shining was on TBS. Sentence5: She immediately changed the channel.

Output: Kate

Input: Consider Input: Sentence1: Daphne was offered a cookie at her best friend's house. Sentence2: Because it looked delicious and she was hungry, she accepted. Sentence3: When she put it in her mouth, she instantly regretted her decision. Sentence4: She hadn't realized the cookie contained almonds, which she hated! Sentence5: Daphne, choking down the cookie, pretended to like it anyway.
Output: Daphne, Best friend