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: Consider Input: Sentence1: Tina saw that Beth had new shoes. Sentence2: She liked them so much she wanted the same ones. Sentence3: Tina asked her mom to get them for her. Sentence4: Her mom said maybe for her birthday. Sentence5: Tina was sad because she wanted them now.

Output: Beth, Tina, Her mom

Input: Consider Input: Sentence1: Timothy worked for a good company. Sentence2: The company had a very strict policy about tardiness. Sentence3: One day he left for work with no time to spare. Sentence4: Timothy got stuck in traffic so he arrived late. Sentence5: He received his first write-up.

Output: Timothy, The company

Input: Consider Input: Sentence1: Sandy was given a part in the school ballet. Sentence2: Sandy practiced hard day and night for the ballet. Sentence3: A few days later, Sandy sprained her ankle during practice. Sentence4: Sandy realized she would not be in the ballet anymore. Sentence5: Sandy was so upset that she would not be able to perform in the ballet
Output: Sandy