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: Angie wanted to surprise her kids with a trip to the zoo. Sentence2: She packed up the things they would need for the day. Sentence3: The kids got in the car and she told them she had a surprise. Sentence4: She pulled into the zoo parking lot. Sentence5: The kids were excited to see that they were at the zoo.

Ex Output:
Angie, Kids

Ex Input:
Sentence1: Jason grew up riding motorcycles. Sentence2: He won his first motorcycle race at the age of 13. Sentence3: He kept racing and improving. Sentence4: Kawasaki sponsored him at the age of seventeen. Sentence5: Jason said that gave him to confidence to win the motocross.

Ex Output:
Kawasaki, Jason

Ex Input:
Sentence1: Jen drove into the highway. Sentence2: There was plenty of traffic, including a road blockage. Sentence3: The traffic cleared up after 1-2 hours. Sentence4: Since Jen got to work late, her boss was mad. Sentence5: He rushed her to continue working on their project.

Ex Output:
Traffic, Jen, Her boss