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.

Sentence1: Who was America's fifth president? Sentence2: All Jack could remember was that it had something to do with sushi. Sentence3: He started listing sushi parts: seaweed, rice, and fish. Sentence4: Then he thought of fish roe! Sentence5: It was James Monroe who was the fifth president of the United States!
James monroe, President, Jack