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: Melissa had a paper due for English class. Sentence2: She worked hard all night trying to finish it. Sentence3: She was furious when she got a zero on the paper. Sentence4: The teacher told her it was because she did cite sources. Sentence5: Melissa had to rewrite it all over again.
Output:
Melissa, Teacher