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 Q]: Sentence1: Warren didn't like beets and told his mom repeatedly. Sentence2: But as she never listened, he had some on his plate for dinner. Sentence3: He tried to give them to his dog. Sentence4: The dog sniffed them and walked away. Sentence5: Warren refused to eat the beets as his dog didn't want them either.
[EX A]: Dog, Mom, Warren

[EX Q]: Sentence1: Jane wanted to make chicken noodle soup. Sentence2: Jane went to the store. Sentence3: Jane bought carrots, celery, potatoes, and a whole chicken. Sentence4: Jane added all of the items to a pot and cooked a pot of soup. Sentence5: Jane's family loved the soup.
[EX A]: Jane, Jane's family

[EX Q]: Sentence1: Simon didn't like anyone and no one liked him either. Sentence2: He was mean and liked to hurt little animals. Sentence3: One day, a young boy went to him with a frog. Sentence4: Simon took the frog and was about to hurt it when the boy screamed. Sentence5: Simon was so touched, he put the frog on the ground and left.
[EX A]:
Boy, Simon, Frog