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: Kate wanted pasta for lunch. Sentence2: But the restaurant was closed due to a fire. Sentence3: Kate realized she only had 15 minutes left on her lunch break. Sentence4: This left her no time to go to another restaurant. Sentence5: Kate went back to work without lunch.

Output: Kate

Input: Consider Input: Sentence1: Barry took a science class. Sentence2: He didn't expect an essay. Sentence3: He took a test with one. Sentence4: He did his very best. Sentence5: Barry didn't do so well.

Output: Barry, Science class

Input: Consider Input: Sentence1: Gina's mom promised her that she would buy pizza. Sentence2: She came home with a box. Sentence3: Gina immediately took it and went to the kitchen. Sentence4: She opened it. Sentence5: She was sad when she found out that one piece was there.
Output: Gina's mom, Gina