TASK 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.
PROBLEM: Sentence1: Aurelia has been trying to find a hobby for months. Sentence2: Finally a friend recommends that Aurelia try knitting. Sentence3: Aurelia begins by knitting a green sweater. Sentence4: She finds knitting a relaxing way to forget her problems. Sentence5: Aurelia is very happy that she found a good hobby.

SOLUTION: Friend, Aurelia

PROBLEM: Sentence1: Simon invited his friend Joey over for a play-date. Sentence2: He was looking forward to playing Minecraft with his friend. Sentence3: Right before Joey arrived, the internet went out. Sentence4: Simon tried resetting the router, but it didn't help. Sentence5: Simon and Joey played outside until the router was back online.

SOLUTION: Simon, Joey

PROBLEM: Sentence1: Annie had been taking riding lessons for a few months. Sentence2: She was finally confident enough to trot without a lead line. Sentence3: Her instructor jogged along beside her to get her started. Sentence4: Then she unsnapped the line. Sentence5: Annie was trotting a horse all by herself!

SOLUTION:
Horse, Instructor, Annie