Definition: 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.
Input: Sentence1: Bob had a big day at work coming up. Sentence2: But he woke in the morning feeling ill. Sentence3: He took his temperature and saw he had a high fever. Sentence4: Bob was forced to call in sick. Sentence5: He was sad to have missed his important day at work.
Output:
Bob