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 Q]: Sentence1: Riley had always enjoyed playing board games. Sentence2: One day he decides to play chess with a friend. Sentence3: It was a difficult game. Sentence4: In the end, Riley lost the chess game. Sentence5: However, he still loved board games.
[EX A]: A friend, Riley

[EX Q]: Sentence1: Jimmy had recently gotten a new telescope from his school. Sentence2: Tonight he planned on using it. Sentence3: He went to his backyard and set up his telescope to face the night sky Sentence4: He focused on a bright spot in the sky. Sentence5: He was so excited to see the planet Venus through his telescope!
[EX A]: Jimmy

[EX Q]: Sentence1: Sarah was looking for some extra cash. Sentence2: She had wanted to buy a new purse. Sentence3: She thought about asking her dad. Sentence4: She decided to go to her dad's house. Sentence5: Getting in her car she finds 5 hundred dollar bills below her car!
[EX A]:
Sarah, Dad