Detailed Instructions: 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: Dorothy always wanted a big brother. Sentence2: She admired her best friend older brother. Sentence3: She would follow him around the neighborhood. Sentence4: He taught her and his sister how to fish. Sentence5: Because of her friends brother, Dorothy grew up to be a good fisherman.
A:
Dorothy, Best friend, Older brother, Big brother