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: Zack had loved animals since he was a child. Sentence2: His dream was to create a zoo full of his favorite animals. Sentence3: After working hard for Years to earn money, Zack bought a zoo. Sentence4: He began slowly building his collection of animals. Sentence5: Zack's zoo has become very large and successful!
Solution:
Zack