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: One day the Zicker family went on vacation to New York. Sentence2: First they went to the Empire State Building. Sentence3: Then they walked around downtown. Sentence4: Then they went to Central Park. Sentence5: Finally they went to the Bronx Zoo.
Output:
Zicker family