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: It was Ty's going to be first day of a new job. Sentence2: He was very anxious. Sentence3: Ty couldn't get to sleep. Sentence4: When he finally did sleep, it wasn't good. Sentence5: Tyler was drained of energy for his first day of work.
A:
Ty