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.
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Question: Sentence1: While on a walk the other night I heard an owl. Sentence2: It kept hooting. Sentence3: I tried searching for it all over. Sentence4: I listened and followed the sound. Sentence5: But I never found it.

Answer: I (myself), Owl

Question: Sentence1: Amy was going to the break room to get ice. Sentence2: Her friend Troy was having his lunch. Sentence3: Amy wasn't on break, but decided to chat with Troy anyway. Sentence4: 20 minutes later Amy was still with Troy. Sentence5: She crept back to her desk hoping not to be seen by her boss.

Answer: Amy, Troy, Boss

Question: Sentence1: Warren usually loves wearing a casual shirt and jeans. Sentence2: However, today he has an important job interview. Sentence3: Warren decides to dress in a suit for the interview. Sentence4: It takes him a long time to get his necktie knotted. Sentence5: When he is dressed, he feels great in his formal business suit.

Answer:
Warren