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: Marie had decided to organize a barbecue. Sentence2: Four cars of friends and family went to the state park. Sentence3: After getting lost and car trouble it was late when they arrived. Sentence4: The food just finished burning as the park was closing. Sentence5: As they ate and ran to the cars a raccoon chased after them.

Output: Raccoon, Marie, Friends, Family


Input: Consider Input: Sentence1: Tom was in a hurry to get to work. Sentence2: He didn't have enough time to match his socks. Sentence3: At the office his co-workers made fun of him. Sentence4: His boss questioned his attire as well. Sentence5: Tom never made that mistake again.

Output: Boss, Co-workers, Tom


Input: Consider Input: Sentence1: Anna found a gold ring in the school bathroom. Sentence2: It was lovely and she wanted to keep it. Sentence3: But her conscience would not let her. Sentence4: Instead, she took it to the lost and found room. Sentence5: Soon it was claimed by a very grateful girl!


Output: Grateful girl, Anna


