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.

Ex Input:
Sentence1: My wife went to a party. Sentence2: They were selling cleaning supplies there. Sentence3: She liked it so much that she bought some. Sentence4: We tried it on the Windows and loved it. Sentence5: We then bought some more since we enjoyed it.

Ex Output:
I (myself), Wife

Ex Input:
Sentence1: Alfred hated how hot the beach sand was. Sentence2: He found wearing sandals in the sand equally unpleasant. Sentence3: He was determined to invent a solution. Sentence4: Alfred devised a heat-resistant lotion for his feet. Sentence5: He tried to gather capital to bring it to market but failed.

Ex Output:
Alfred

Ex Input:
Sentence1: The hotel clerk told us our room had been given to someone else. Sentence2: We got on our phones and tried to find another place to stay. Sentence3: My wife went to the lobby and sad down. Sentence4: She put her phone down. Sentence5: Then she went to sleep right there.

Ex Output:
Clerk, Someone else, My wife