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: Sue has a big German exam coming up. Sentence2: She has been studying for weeks. Sentence3: She still feels unsure. Sentence4: She decided to pull an all-nighter. Sentence5: However, she fell asleep and slept through her exam.
Sue