You will be given a definition of a task first, then some input of the task.
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.

Sentence1: Emma was born to rich parents. Sentence2: She attended a fancy private school. Sentence3: After school, she married a doctor. Sentence4: The two of them had three healthy children. Sentence5: Emma saw each of them graduate college before her death at age 100.
Output:
Parents, Emma, Children, Doctor