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: Oswald sold oranges on the side of the road. Sentence2: He loved his job and he didn't care that he hardly made any money. Sentence3: Oswald loved oranges. Sentence4: His favorite part was seeing how happy his oranges made people. Sentence5: At the end of the day he would count smiles not money.

Ex Output:
Oswald, People

Ex Input:
Sentence1: Jeff was constantly stressed out. Sentence2: But one day, someone approached him and talked to him. Sentence3: Immediately, Jeff felt more relaxed. Sentence4: And he realized that having more friends would help his stress. Sentence5: But Jeff struggled to hold conversations with others.

Ex Output:
Someone, Friends, Others, Jeff

Ex Input:
Sentence1: Bill was having a great time at the bar. Sentence2: Downing shot after shot. Sentence3: He than began to get nasty and rude. Sentence4: He even tried to make sexual advances to women. Sentence5: He was thrown out of the bar by the bouncers.

Ex Output:
Bill, Bouncers, Women