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.

Ex Input:
Sentence1: Tucker has always been lazy when it comes to chores. Sentence2: He now lives alone after a great 18 years living with his parents. Sentence3: In his college dorm, he would cook food but rarely ever do the dishes. Sentence4: After being gone for the weekend, his roommate returns to a smell. Sentence5: Tucker was scolded by his roommate for the dirty dishes in the sink.

Ex Output:
Tucker, Parents, Roommate

Ex Input:
Sentence1: Fred has always wanted to join the army. Sentence2: At the age of 16 a recruiter talked to him about joining. Sentence3: He decided to enlist shortly after high school. Sentence4: He made it through bootcamp and was immediately promoted. Sentence5: He's now apart of the special forces and loves his job.

Ex Output:
A recruiter, Fred

Ex Input:
Sentence1: A thirteen year old female is missing from home. Sentence2: She was last seen on Thursday after school hanging out with friends. Sentence3: Those friends left her home at 7pm as she began her homework. Sentence4: When she finished her homework, she ate and went to bed. Sentence5: She was not in the bed in the morning and has not been seen since.

Ex Output:
Friends, A thirteen year old female