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: June fell out of her tree house. Sentence2: Her arm really hurt. Sentence3: Her mom drove her to the hospital. Sentence4: They did an x-ray. Sentence5: They could see that she had a broken arm.

Ex Output:
June, Her mom

Ex Input:
Sentence1: The jihadist called the support line with a complaint of an itch. Sentence2: His vest bomb had been bothering him for the better part of a day. Sentence3: The support tech requested the number to the mobile attached to it. Sentence4: Promising only a quick tweak was necessary, the tech called the phone. Sentence5: The support line went dead, and tech went back to reading his book.

Ex Output:
Jihadist, Support tech

Ex Input:
Sentence1: Briana runs a small successful company. Sentence2: She keeps productivity high by only hiring her friends. Sentence3: She found another path to success by giving talks. Sentence4: Briana can stymie the competition in a subtle way. Sentence5: She shames them into not just hiring their friends.

Ex Output:
Briana, Her friends