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: John did not know how to roller skate. Sentence2: His friend said that he would teach him. Sentence3: They spent all day practicing skating. Sentence4: John kept trying and got very good. Sentence5: Now he roller skates all over the neighborhood.
[EX A]: John, Friend

[EX Q]: Sentence1: James had two best friends who hated each other. Sentence2: He could never see them together but always apart. Sentence3: For his birthday, he made an exemption and invited them both. Sentence4: It was a gamble, but it worked. Sentence5: The two friends went over their disagreement for the sake of James.
[EX A]: James, Best friends

[EX Q]: Sentence1: I was tired of the same old hair color. Sentence2: I was used to having black hair, but it was boring. Sentence3: Everyone said I was crazy to change it. Sentence4: I bought some bleach and turned part of it white. Sentence5: Then I added bright pink dye, creating streaks and a new look.
[EX A]:
I (myself)