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: Cindy wanted to buy her mother a necklace for her birthday. Sentence2: She didn't have any money, so she decided to open a lemonade stand. Sentence3: All her neighbors bought her lemonade, and Cindy made lots of money. Sentence4: Cindy used the money to buy her mother a necklace. Sentence5: Cindy's mother loved her gift, and Cindy was very proud of herself.
Output:
Neighbors, Cindy's mother, Cindy