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: Casey was a secretary at a leasing office. Sentence2: There was a new hire, Savannah, whom Casey quickly became friends with Sentence3: Until the day Casey was running about one hour late to work. Sentence4: Savannah called the boss to tell on Casey. Sentence5: Casey and Savannah are not friends anymore.
Solution:
Casey, Savannah, Boss