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: Spencer had a project due. Sentence2: He had not done it yet. Sentence3: He got all the stuff together for it. Sentence4: He did it quickly. Sentence5: He turned it in on time.
[A]: Spencer

[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.
[A]: A friend, Riley

[Q]: Sentence1: The new upstairs neighbors have kids. Sentence2: They run around and are loud all day. Sentence3: They seem old enough to be in school. Sentence4: I called the authorities to see why they weren't. Sentence5: They showed up to investigate today.
[A]:
Neighbors, I (myself), Kids, Authorities