Given the task definition and input, reply with output. 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: Nancy's parents asked her come to the family dinner. Sentence2: Since she had a big test tomorrow, she refused. Sentence3: Several hours later, her family came over to the house. Sentence4: They were happy and and couldn't stop talking. Sentence5: Nancy became mad and went in her bedroom.

Her family, Nancy's parents, Nancy