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: Amy was in her school's media center. Sentence2: When it was her turn she decided to try a new game. Sentence3: Her teacher suggested Number Munchers. Sentence4: Amy wasn't good at math so the game was very hard. Sentence5: She gave the game back to the teacher and went to read a book.
A: 
Amy, Teacher