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.
Input: Sentence1: Kia's mom called her out into the yard. Sentence2: Kia went, perplexed. Sentence3: But then she saw what her mom was pointing at. Sentence4: Her mouth fell open in awe. Sentence5: There was a rare and beautiful double rainbow overhead!
Output:
Kia, Kia's mom