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.
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Question: Sentence1: Jim was sitting alone in his room, bored. Sentence2: He decided to go out and do something. Sentence3: He tagged the stop sign at the end of his street. Sentence4: A cop sat in his cruiser and watched him do it. Sentence5: Jim got sentenced to six months in juvenile detention.

Answer: Cop, Jim

Question: Sentence1: Suzanne had a Halloween party. Sentence2: She asked all of her guests to come in costume. Sentence3: She said that a prize would be given for the best costume. Sentence4: A boy named Dave came dressed as a girl. Sentence5: His costume was so convincing he won first prize in the contest.

Answer: Dave, Suzanne, Guests

Question: Sentence1: Duncan sat down with his friend looking for ideas. Sentence2: They wrote so many different things down trying to find ideas. Sentence3: Ultimately they were stumped. Sentence4: Duncan searched the internet and got some new inspiration! Sentence5: Five minutes later they sat back down and Duncan had the perfect plan!

Answer:
Friend, Duncan