Definition: 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.
Input: Sentence1: Eric used to play with 2 boys in his neighborhood. Sentence2: But one day they started to bully him. Sentence3: They took it too far and decided to hold two knives to his neck. Sentence4: Eric's mom found out and called the cops,and the bullies were scolded. Sentence5: After that incident Eric was not allowed to play with the bullies.
Output:
The cops, Eric's mom, Eric, 2 boys