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.

[Q]: 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.
[A]: Dave, Suzanne, Guests

[Q]: Sentence1: Brent was an engineer. Sentence2: Brent had a hobby of making soap. Sentence3: He decided to sell his soap for money. Sentence4: He was wildly successful and went into the soap business. Sentence5: Brent had a great career in the soap business.
[A]: Brent

[Q]: Sentence1: A man went to the mall with a box of marbles. Sentence2: He took the box to the top of an escalator. Sentence3: When no one was on the escalator he dumped the marbles. Sentence4: As the marbles rolled down he cheered them on. Sentence5: The man called the first marble to his the next floor the winner.
[A]:
Man