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.
Example: Sentence1: My dog was bored. Sentence2: I was working all day so I couldn't spend time with him. Sentence3: When I finished work I decided to play with my dog. Sentence4: He was so happy to finally have some fun! Sentence5: Alas, he fell sick and died.
Example solution: I (myself), Dog
Example explanation: There is only two characters in given story, i.e., I (myself) and dog.

Problem: Sentence1: O'shea was in the 7th grade when he was almost shot. Sentence2: He was on his school bus heading home and a friend made gang signs. Sentence3: The car next to the bus was full of gang members. Sentence4: The car sped up, got in front of the bus and stopped it. Sentence5: A gang member got on the bus with a gun and threatened to shoot.
Solution: Gang members, Gang member, Friend, O'shea