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.

Ex Input:
Sentence1: Jena was cooking spaghetti for dinner. Sentence2: She went pick up the groceries from the store. Sentence3: The tomatoes appeared to be rotten. Sentence4: Jena picked up a jar of spaghetti sauce. Sentence5: She used pre made sauce instead of homemade.

Ex Output:
Jena

Ex Input:
Sentence1: Roland came to the bowling alley looking to improve his skills. Sentence2: He paid for 2 hours of bowling as well as premium equipment. Sentence3: Roland hadn't been playing for long when he got his first ever strike. Sentence4: Feeling accomplished, he did his signature dance and ordered food. Sentence5: He managed to do it 3 more times before it was done for the evening.

Ex Output:
Roland

Ex Input:
Sentence1: Rob had had a very long day. Sentence2: He decided to take a hot bath. Sentence3: It was relaxing and made his muscles feel great. Sentence4: Rob was instantly in a better mood. Sentence5: Baths were Rob's new favorite way to relax.

Ex Output:
Rob