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.
Problem:Sentence1: My niece's cat was snoring one night. Sentence2: My niece grabbed her smartphone. Sentence3: She was going to snapchat a video of her cat snoring. Sentence4: The cat woke up before she could record her. Sentence5: My niece was disappointed.
Solution:
My niece, My niece's cat