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: The boy had his wisdom teeth removed. Sentence2: His mouth was stuffed with gauze. Sentence3: His speech was garbled. Sentence4: He asked for pudding. Sentence5: But the nurse thought he said pillow.
Student:
Boy, Nurse