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: Susanna enjoyed riding horses. Sentence2: She went out to a farm one day and started to ride. Sentence3: She rode all over the place. Sentence4: Susanna was quite good at riding horses. Sentence5: She had a wonderful time that day riding horses.
Solution:
Horses, Susanna