Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence1: Derek was running late for class. Sentence2: He hopped on the bus just in time. Sentence3: He was on his way to school on the bus. Sentence4: He reached down in his backpack to pull out his computer. Sentence5: It wasn't there!
Student:
Bus, Derek