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: Hank was a very hairy man. Sentence2: He went to the store to buy some razors. Sentence3: A cop saw him and called a swat team. Sentence4: The cop thought Hank was a bear. Sentence5: Hank laughed it off and went home to shave his hair.
A:
Hank, Cop, Swat team