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: Bill is driving to work. Sentence2: His car begins to make a loud noise. Sentence3: He pulls over to see what's wrong. Sentence4: He opens the hood and smoke flies everywhere. Sentence5: He calls triple a and waits for help.
A:
Bill