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: Jack hated his teachers. Sentence2: He didn't appreciate the way they taught. Sentence3: He wished they would reach out to him to teach him. Sentence4: Ironically he decided to teach so other kids wouldn't struggle. Sentence5: Now he is helping kids who would otherwise hate learning too.
Output:
Kids, Jack, Teachers