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.

Example Input: Sentence1: Jennifer decided to grill some corn one day. Sentence2: She went outside and preheated her grill. Sentence3: She peeled back the corn husks and removed silk. Sentence4: She then wrapped each ear of corn in aluminum foil. Sentence5: She placed them on the grill.
Example Output: Jennifer

Example Input: Sentence1: Gina and her friend sat on the swings during recess. Sentence2: They weren't swinging, but just sitting and talking. Sentence3: The school bully began walking their way. Sentence4: She wanted them to give up the swings. Sentence5: They left the swings so there would be no trouble.
Example Output: School, Gina, Bully, Friend

Example Input: Sentence1: One of my favorite new drinks is green tea. Sentence2: I read in an article that green tea helps with weight loss. Sentence3: It also has caffeine so it can replace my morning coffee. Sentence4: I find a store that sells green team for very cheap. Sentence5: I now drink about five cups of green tea every day.
Example Output:
I (myself)