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: Ty was a heavy smoker. Sentence2: He needed to quit for his health. Sentence3: He joined a quit club at work. Sentence4: All the guys encouraged each other. Sentence5: they helped To quit smoking for good!
A:
Club, Guys, Ty