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: Phil wanted to have a fun evening out in town. Sentence2: He invited his friend Rich to join him for some karaoke. Sentence3: They went to a karaoke bar and had a few drinks. Sentence4: Phil got up on stage and started singing. Sentence5: His singing was atrocious, but everyone joined in anyway.

Answer: Phil, Everyone, Rich

Question: Sentence1: Gina had inherited a house from her parents. Sentence2: She wanted to sell the house. Sentence3: Gina took out the things that had sentimental value. Sentence4: She found a realtor to sell the house. Sentence5: Gina sold the house to a buyer.

Answer: Realtor, Buyer, Gina, Parents

Question: Sentence1: John had trouble sleeping. Sentence2: He decided to take melatonin to help him sleep. Sentence3: John had awful nightmares as a result. Sentence4: John stopped taking it. Sentence5: John had to find other ways to help him sleep.

Answer:
John