Q: 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: Charles rented a room in May's house. Sentence2: One day, Charles had an urge to try his luck in Vegas. Sentence3: He was very lucky at dice, making six thousand his first night. Sentence4: He stayed in Vegas for two weeks, gambling, making $80,000. Sentence5: He came home and someone was in his place, May rented his room out.
A:
May, Someone, Charles