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: Tom loved nuts. Sentence2: He was very frugal. Sentence3: He went shopping at the grocery store. Sentence4: He saw a huge discount on bulk walnuts for sale. Sentence5: He stocked up on walnuts.
[EX A]: Tom

[EX Q]: Sentence1: Bob bought a ring for his girlfriend Sally. Sentence2: He wrapped the small box with a beautiful gold bow. Sentence3: He took Sally on a hot air balloon ride. Sentence4: They flew over a large sign asking if she would marry Bob. Sentence5: Sally was excited to tell everyone her romantic engagement story.
[EX A]:
Bob, Everyone, Sally