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: Lisa had always wanted to try making jewelry. Sentence2: She started by creating some earrings. Sentence3: That inspired her to make even more. Sentence4: Lisa continued to make more earrings. Sentence5: She was happy that she was making jewelry.

Ex Output:
Lisa

Ex Input:
Sentence1: Joe hungered for power. Sentence2: He did anything and stepped on everyone to get to the top. Sentence3: As he was good at his job, it worked. Sentence4: He became very famous and had a lot of money. Sentence5: Now that he has power, Joe doesn't know what to do with his time.

Ex Output:
Everyone, Joe

Ex Input:
Sentence1: Tina had sampled her mom's wine last night. Sentence2: Her mom had caught her and grounded her. Sentence3: But the next morning, Tina woke with a terrible hangover. Sentence4: She thought that was a far worse punishment than the grounding. Sentence5: Tina vowed never to drink alcohol again!

Ex Output:
Tina, Her mom