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: Tom was walking home. Sentence2: A small cat started following him. Sentence3: Tom thought the cat was cute. Sentence4: It followed him all the way home. Sentence5: Tom eventually took it in.

SOLUTION: Cat, Tom

PROBLEM: Sentence1: A friend of ours told us to watch a show called Blippy. Sentence2: It is this odd show on Youtube. Sentence3: It is nothing special, just a show aimed for kids. Sentence4: It made me think I can maybe create a show. Sentence5: I should really think about doing that and making a ton of money.

SOLUTION: I (myself), Ours, Kids, Friend

PROBLEM: Sentence1: My sister-in-law's birthday was July 27th. Sentence2: She is very fussy. Sentence3: My son asked her for suggestions. Sentence4: At her request, he got a subscription to a soap opera magazine. Sentence5: She was very happy.

SOLUTION:
I (myself), Sister in law, Son