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: 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.
[A]: Herbert

[Q]: Sentence1: My wife hates her job. Sentence2: She is a teacher to sixth graders and she always gets headaches. Sentence3: She complains that they are way to loud and don't listen. Sentence4: She asked the principal if she could teach at the high school level. Sentence5: The principal allowed her to switch to the junior year, she's happy.
[A]: I (myself), School, Principal, Sixth graders, Wife

[Q]: Sentence1: Tim has been playing the Monopoly contest at his local grocery store. Sentence2: Tim gets one of the two pieces he needs for the million dollar prize. Sentence3: Tim knows the chances of him finding the other piece is close to nil. Sentence4: So he puts ads all over craigslist looking for the other piece. Sentence5: He finds someone who has it and splits the prize with them.
[A]:
Tim, Someone