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.
Input: Sentence1: Brian worked at a newspaper, but he like to perform stand up comedy. Sentence2: Brian was good at comedy, and someone took notice. Sentence3: He was offered a job hosting a comedy show for a local TV station. Sentence4: The writing for the show was bad, and it eventually got cancelled. Sentence5: Brian regretted quitting his day job at the newspaper.
Output:
Brian, Someone