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: Barry took a science class. Sentence2: He didn't expect an essay. Sentence3: He took a test with one. Sentence4: He did his very best. Sentence5: Barry didn't do so well.
[EX A]: Barry, Science class

[EX Q]: Sentence1: Tom hadn't slept well. Sentence2: He was at a big meeting. Sentence3: He felt tired throughout. Sentence4: Tom kept yawning and dozing off. Sentence5: He got in trouble because of it.
[EX A]: Tom

[EX Q]: Sentence1: Kelsi's parents promised her a new puppy for her birthday. Sentence2: Her parents took her to the pet store to take a look. Sentence3: Kelsi's eyes laid on this beautiful brown dog that was very small. Sentence4: The dog was waiting to be adopted and Kelsi picked it up. Sentence5: Kelsi was so excited to have her new puppy.
[EX A]:
Kelsi's parents, Puppy, Kelsi