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: Sean was looking for a job. Sentence2: He was inside of a smoothie shop inquiring about a position. Sentence3: The manager interviewed him and it went well. Sentence4: He had one issue, Sean's red hair, identical to the uniform. Sentence5: Sean promised that he would change his hair color and was hired.
Output:
Manager, Sean