Detailed Instructions: 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: Jeff was watching a car racing movie. Sentence2: And afterwards, he felt like using his own car for races. Sentence3: He sped down the freeway one night. Sentence4: But he was caught be a police officer and issued a speeding ticket. Sentence5: Jeff had to do 50 hours of community service.
Solution:
Police officer, Jeff