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: Kate was sipping on orange soda and sketching in her sketch book. Sentence2: Her brother and his friend came in the room. Sentence3: They were throwing a football around. Sentence4: It landed and knocked over Kate's soda. Sentence5: The orange soda ruined Kate's drawing.

Output: Kate, Friend, Brother

Input: Consider Input: Sentence1: Jeb wanted to make the football team. Sentence2: He practiced every day. Sentence3: He ran as fast as he could. Sentence4: He could catch well. Sentence5: He made the team and was happy!

Output: Jeb

Input: Consider Input: Sentence1: Amy was having her first Christmas with her husband. Sentence2: They needed their own set of stockings. Sentence3: They couldn't afford much so Amy decided to make them herself. Sentence4: It took her months to learn how and then complete them. Sentence5: On Christmas, the stockings were perfect.
Output: Amy, Her husband