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: Bill recently applied for a new mortgage. Sentence2: Bill was told he would receive an answer via email. Sentence3: It had almost been two weeks, when finally got an email. Sentence4: Bill was nervous, but opened the email anyway. Sentence5: Bill was excited to find out that he was approved for a mortgage.
A:
Bill