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: Consider Input: Sentence1: Spencer had a project due. Sentence2: He had not done it yet. Sentence3: He got all the stuff together for it. Sentence4: He did it quickly. Sentence5: He turned it in on time.

Output: Spencer

Input: Consider Input: Sentence1: My wife used the vacuum cleaner today. Sentence2: It is very noisy. Sentence3: Our cat hates it. Sentence4: She hid under the bed for an hour after the vacuuming stopped. Sentence5: She slowly came out and is fine now.

Output: Our cat, My wife

Input: Consider Input: Sentence1: The bully at school punched me. Sentence2: He gave me a black eye. Sentence3: The nurse gave me a cold steak to put on my eye and soothe it. Sentence4: Alas, the meat infected my eye. Sentence5: My parents sued the nurse and won the case.
Output: I (myself), The nurse, The bully, My parents