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: Evelyn and Robert moved into a new home. Sentence2: Evelyn bought a few houseplants to liven up the place. Sentence3: Then a friend who was moving away gifted Evelyn some of his plants. Sentence4: Soon, everyone thought Evelyn was a plant fanatic. Sentence5: Now, everyone gives Evelyn house plants as gifts.

Ex Output:
Evelyn, Robert, A friend, Everyone

Ex Input:
Sentence1: Dan dreaded doing back to school shopping with his kids. Sentence2: However, Dan had to purchase new backpacks and shoes for the kids. Sentence3: Dan decided to go to the mall to get the school shopping done. Sentence4: After looking through several stores, Dan didn't find anything. Sentence5: Dan was disappointed that he did not find anything at the mall.

Ex Output:
Kids, Dan

Ex Input:
Sentence1: James liked to write with pencil. Sentence2: He found one that was mechanical. Sentence3: It wrote so smoothly and erased very well. Sentence4: James swore he would never use a different kind of pencil again. Sentence5: He bought all of them that the store had.

Ex Output:
James