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: Gina and her friend sat on the swings during recess. Sentence2: They weren't swinging, but just sitting and talking. Sentence3: The school bully began walking their way. Sentence4: She wanted them to give up the swings. Sentence5: They left the swings so there would be no trouble.

Ex Output:
School, Gina, Bully, Friend

Ex Input:
Sentence1: When Lana was pregnant, she was in a car accident. Sentence2: She was taken to the hospital for x-rays. Sentence3: Months later, the baby was born with a clubfoot. Sentence4: Lana sued the hospital for giving her x-rays while pregnant. Sentence5: She received a settlement, which she put aside for her son.

Ex Output:
Baby, Lana

Ex Input:
Sentence1: Evan loved his girlfriend Julia. Sentence2: He decided to ask Julia to marry him. Sentence3: He dropped to one knee and proposed. Sentence4: He couldn't believe his good luck when Julia replied. Sentence5: She began to cry and eagerly said yes!

Ex Output:
Evan, Julia