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: Marshall was eager to tell his friends his campfire story. Sentence2: He always loved horror movies and was good at spinning a tale. Sentence3: As he was telling his story, he heard a strange sound. Sentence4: Marshall and his friends decided to investigate but found nothing. Sentence5: Marshal and his friends did not sleep for the entire night.
Student:
Marshall, Friends