instruction:
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.
question:
Sentence1: Dean decided he was going to prank his principle. Sentence2: He took a carton of eggs from his fridge and headed out. Sentence3: He arrived at his principal's house a little after midnight. Sentence4: After throwing two eggs his principle came outside. Sentence5: He was forced to clean up the mess and serve detention for a month.
answer:
Dean, Principal

question:
Sentence1: I am Chinese. Sentence2: One day I was sitting on the bench in front of my building. Sentence3: A young man came by and said I looked like his father. Sentence4: He was white, however, as was his father. Sentence5: He said I just looked like his dad.
answer:
I (myself), Young man

question:
Sentence1: Tina and Helen went on the water floats in the arcade. Sentence2: Helen was able to use the water gun from the float to squirt people. Sentence3: Tina started to abuse it and aggressively attack people. Sentence4: The worker told both of them to get out. Sentence5: She also banned Tina from coming to the arcade in the future.
answer:
People, Worker, Tina, Helen