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: Samantha was going out for the night. Sentence2: She needed to withdraw money. Sentence3: She went to the atm and inserted her card. Sentence4: The atm displayed an error message! Sentence5: Sam drove to the grocery store and was able to get cash back instead.

SOLUTION: Samantha

PROBLEM: Sentence1: Tommy has a red balloon. Sentence2: It's his favorite color! Sentence3: But one day, the balloon lost it's air. Sentence4: Tommy was very sad. Sentence5: But he'll get a new balloon tomorrow, so it's not that bad.

SOLUTION: Tommy

PROBLEM: Sentence1: Donald was giving a speech to his followers. Sentence2: All of a sudden a baby started crying. Sentence3: Donald at first joked that it was alright. Sentence4: After a while he became noticeably annoyed. Sentence5: He asked that the baby and mother get kicked out.

SOLUTION:
A baby, His followers, Donald, Mother