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.

Input: Consider Input: Sentence1: Today was Fred's first day of high school. Sentence2: He was quite nervous. Sentence3: He was worried he would not make any friends. Sentence4: Luckily when he got there some nice kids started talking to him. Sentence5: Fred was happy he made some friends.

Output: Kids, Fred

Input: Consider Input: Sentence1: Jenny's dad took her to the pound to pick out a kitten. Sentence2: She found the perfect kitten but there was a problem. Sentence3: Her kitten was in the same cage as a friend. Sentence4: She didn't want to break them up. Sentence5: She was delighted when her dad said they could take both home.

Output: Jenny's dad, A friend, Jenny, A kitten

Input: Consider Input: Sentence1: Little Ella was a huge fan of dinosaurs. Sentence2: She wanted to be a Paleontologist. Sentence3: Her kindergarten class was taking a trip to see mechanical dinosaurs. Sentence4: When she got there, Ella was terrified of the fake dinosaurs. Sentence5: Ella decided she doesn't want to be a Paleontologist.
Output: Ella, Kindergarten class