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: My sister is afraid of spiders. Sentence2: She jumps and screams every time she sees one. Sentence3: I love teasing her with spiders and watching her run away. Sentence4: At school, my sister learned about spiders and was no longer afraid. Sentence5: Now I can't have fun teasing her about spiders.

Ex Output:
I (myself), My sister, Spider, Spiders

Ex Input:
Sentence1: Tim had severe social anxiety. Sentence2: He tried going to Subway. Sentence3: He wanted to get a specific sandwich. Sentence4: He got overwhelmed by so many questions. Sentence5: Tim wound up answering wrong and getting a different sub.

Ex Output:
Tim