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: Melinda heard a noise. Sentence2: There was a burglar in her house! Sentence3: She called the police. Sentence4: They rushed over and arrested him. Sentence5: Melinda no longer felt safe.

Output: Melinda, Burglar, Police

Input: Consider Input: Sentence1: Samantha was going out for the night. Sentence2: She needed to withdraw money. Sentence3: She went to the atm and inserted her card. Sentence4: The atm displayed an error message! Sentence5: Sam drove to the grocery store and was able to get cash back instead.

Output: Samantha

Input: Consider Input: Sentence1: Bob saw the finish line coming up ahead. Sentence2: He heard the crowd cheering from the stands. Sentence3: This was it! Sentence4: This was the moment he'd spent years of his life training for! Sentence5: Bob zoomed across the finish line and won the race.
Output: Bob, The crowd