Q: 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: The principal decided to take a trip to Ms.Diana's class. Sentence2: When he looked inside, the kids were playing video games. Sentence3: Ms.Diana was resting on her desk with her head down. Sentence4: The principal was furious and pulled her out of class. Sentence5: She received a short suspension.
A:
Diana, The kids, The principal