TASK DEFINITION: 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.
PROBLEM: Sentence1: Jennifer went out that morning to walk the dog. Sentence2: He was a very excitable labrador retriever. Sentence3: Jennifer did not see the bunny until it was too late. Sentence4: Fido bounded after it, while she raced to keep up. Sentence5: She was finally able to slow him down, and make him stop chasing it.

SOLUTION: Bunny, Jennifer

PROBLEM: Sentence1: Dan had a very fine cobblestone walkway. Sentence2: Some of the stones had started to jut out unevenly. Sentence3: Dan got out a shovel and leveled the dirt under them. Sentence4: He tamped them down gently to make them all match. Sentence5: Now the stones in Dan's walkway are all perfectly even.

SOLUTION: Dan

PROBLEM: Sentence1: Kim had to do a report on a mammal for her biology class. Sentence2: She decided to do her report on wombats. Sentence3: After reading about wombats, she thought that they were hilarious. Sentence4: She included a lot of humor in her written report about wombats. Sentence5: Kim's teacher loved the humor in her report about wombats.

SOLUTION:
Wombats, Teacher, Kim