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: Jon and his father were going hunting in the woods. Sentence2: They saw a deer through the bushes. Sentence3: Trying to keep quiet, they inched towards it. Sentence4: Jon stepped on a branch, and the deer was scared off. Sentence5: The deer would live another day.

SOLUTION: A deer, Jon, Father

PROBLEM: Sentence1: Dan wanted to get some exercise in today. Sentence2: Dan decided he would go to the local pool and swim several laps. Sentence3: However, when Dan arrived he noticed the facility was closed. Sentence4: Dan decided he would go back home and exercise there. Sentence5: Dan was disappointed that he could not swim in the pool.

SOLUTION: Dan

PROBLEM: Sentence1: Carl bought his son CJ a hunting rifle for his eighteenth birthday. Sentence2: They lived in the country, but still Carl's wife was apprehensive. Sentence3: Then Carl took CJ out and began teaching him how to aim and shoot. Sentence4: Soon CJ brought home venison for dinner! Sentence5: Carl's wife admitted she was proud of her son.

SOLUTION:
Cj, Carls wife, Carl