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: My wife used the vacuum cleaner today. Sentence2: It is very noisy. Sentence3: Our cat hates it. Sentence4: She hid under the bed for an hour after the vacuuming stopped. Sentence5: She slowly came out and is fine now.

SOLUTION: Our cat, My wife

PROBLEM: Sentence1: On a Friday night, Bobby wanted to hang out with his friends. Sentence2: All of his friends were busy tonight though. Sentence3: So Bobby made imaginary friends. Sentence4: Bobby hung out with his imaginary friends. Sentence5: Later Bobby went to sleep and was happy with his new squad.

SOLUTION: Friends, Imaginary friends, Bobby

PROBLEM: Sentence1: Ila asked some friends to play soccer with her. Sentence2: They all met at the field in the park. Sentence3: Then they set up their goal posts. Sentence4: Soon they were kicking, running, and laughing. Sentence5: Ila and her friends had a fantastic time playing soccer together!

SOLUTION:
Friends, Ila