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: Mildred took over the farm when her husband died. Sentence2: She was very old and inexperienced. Sentence3: She hired a farmhand named Mark. Sentence4: He turned the farm around and saved her business. Sentence5: Mildred was so grateful!
Student:
Mildred, Husband, Mark