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: Hebert loved going to the local arcade. Sentence2: His favorite game was a shooting game where you rack up a high score. Sentence3: One day Herbert was playing one of his best games yet. Sentence4: He made it to the last level and won the game. Sentence5: Herbert got the highest score in the game that day.
[EX A]: Herbert

[EX Q]: Sentence1: Billy wanted a car. Sentence2: He tried to get a loan but they said he didn't make enough money. Sentence3: Billy couldn't get a better paying job because he didn't have a car. Sentence4: He saved for nine months, until he had enough money for a car. Sentence5: Now that he has a new car and a new job.
[EX A]: Billy

[EX Q]: Sentence1: Steve heard a noise in the fireplace. Sentence2: He opened the fireplace doors. Sentence3: A squirrel was huddled up in the back corner by the logs. Sentence4: Steve coaxed the squirrel out with some peanuts. Sentence5: Steve let the squirrel go outside in his backyard.
[EX A]:
Steve, Squirrel