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: Kyle wanted to try wine since he never drank before. Sentence2: He bought a bottle of good wine and some cheese. Sentence3: He invited his buddy wilbur over and they ate cheese and crank wine. Sentence4: They really enjoyed it so they did again the following week. Sentence5: Kyle is now a wine lover.

Ex Output:
Kyle, Wilbur

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: Gina tripped on her shoe while carrying a small Tupperware. Sentence2: The Tupperware had loose fitting drawers. Sentence3: And her jewelry was inside. Sentence4: When she tripped, the drawers flew open. Sentence5: Gina's jewelry spilled out all over the floor.

Ex Output:
Gina