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: Celia was playing in her mother's makeup. Sentence2: The makeup was very expensive. Sentence3: Celia wasted a lot of the makeup. Sentence4: Her mother walked in a saw Celia with a mess of makeup. Sentence5: Celia got in trouble for playing with the makeup.
Output:
Mother, Celia