Detailed Instructions: 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.
Problem: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.
Solution:
I (myself), Young man