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.
Q: Sentence1: Josh wanted to become a sumo wrestler. Sentence2: He moved to Japan to train in a dojo. Sentence3: He trained for two years. Sentence4: Finally, he decided to test his skills in a real match. Sentence5: He lost the match within one minute!
A:
Josh