You will be given a definition of a task first, then some input of the task.
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.

Sentence1: Yvette was about to get married, but she needed a dress. Sentence2: She went to the dress shop with her friends. Sentence3: She tried on many dresses, but her friends didn't approve. Sentence4: Finally, she put on the perfect dress. Sentence5: Her friends approved and the bought in on the spot!
Output:
Yvette, Her friends