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.

Input: Consider Input: Sentence1: Jeff is carrying is walking across the street. Sentence2: A car comes and hits him. Sentence3: He goes soaring through the air. Sentence4: Jeff lands on his feet. Sentence5: Jeff is uninjured and finishes walking across the street.

Output: Jeff

Input: Consider Input: Sentence1: A friend of mine is always testing his luck with the law. Sentence2: He rather sell drugs than get a job. Sentence3: The last I heard is he started to traffic across state lines. Sentence4: Yesterday the DEA came looking for him. Sentence5: Later in the evening news he was arrested with drugs.

Output: I (myself), Dea, Friend

Input: Consider Input: Sentence1: Erica was doing the dishes. Sentence2: She slipped on a wet spot on the ground. Sentence3: She broke a plate that she was holding in her hand. Sentence4: She cleaned up the mess of broken ceramic. Sentence5: Afterwards, she mopped up the wet spot.
Output: Erica