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: Ken had just bought a new computer game. Sentence2: But he could not get it to work! Sentence3: So he called a smart friend over to help him install it. Sentence4: His friend got it figured out in no time. Sentence5: Soon the two boys were gaming together happily!

Answer: Ken, Friend

Question: Sentence1: Susie was having a costume party. Sentence2: She invited all of her friends. Sentence3: She dressed up as a cat. Sentence4: Her friends loved it. Sentence5: Susie ended up winning the costume contest at the party.

Answer: Susie, Her friends

Question: Sentence1: Ed's mom came into his room at least four times. Sentence2: Every time she told him to stop jumping on the bed. Sentence3: Every time he ignored her. Sentence4: He felt himself falling as he heard a loud crack. Sentence5: He had finally broken the bed!

Answer:
Ed, Mom