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: Nancy was very unhappy with the customer service she received. Sentence2: She couldn't find a manager to talk to though. Sentence3: Nancy was forced to go home angry. Sentence4: She posted on the company's website about her experience. Sentence5: A manager who saw the post, contacted Nancy to help fix the issue.

Ex Output:
Manager, Nancy

Ex Input:
Sentence1: Charlie and Susan went on a date. Sentence2: They decided to eat at a nice restaurant. Sentence3: The two ordered a bottle of wine. Sentence4: Charlie ordered food for them both. Sentence5: The couple ate and drank and enjoyed themselves.

Ex Output:
Charlie, Susan

Ex Input:
Sentence1: I was walking to the museum yesterday. Sentence2: As I was walking, my earring fell out. Sentence3: It dropped to the ground. Sentence4: I had ten seconds to pick it up. Sentence5: When I got it I put it in my bag.

Ex Output:
I (myself)