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: Susie was having a costume party. Sentence2: She invited all of her friends. Sentence3: She dressed up as a cat. Sentence4: Her friends loved it. Sentence5: Susie ended up winning the costume contest at the party.

Output: Susie, Her friends

Input: Consider Input: Sentence1: Charlie and Susan went on a date. Sentence2: They decided to eat at a nice restaurant. Sentence3: The two ordered a bottle of wine. Sentence4: Charlie ordered food for them both. Sentence5: The couple ate and drank and enjoyed themselves.

Output: Charlie, Susan

Input: Consider Input: Sentence1: Howard was in the city. Sentence2: He went into a bar for a drink. Sentence3: He suddenly saw this beautiful girl. Sentence4: He spoke to her and got her number. Sentence5: This made his night.
Output: Girl, Howard