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 Q]: 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.
[EX A]: Jeff

[EX Q]: Sentence1: Clayton was deathly afraid of house centipedes. Sentence2: One day he saw one scuttling around on his floor. Sentence3: Terrified, he called over his roommate to kill it for him. Sentence4: She walked in, unafraid, and swiftly smashed the bug with a book. Sentence5: Clayton was grateful and actually kind of impressed.
[EX A]: Clayton, Roommate

[EX Q]: Sentence1: Ronnie grew up experimenting with drugs starting from the age 11. Sentence2: She mainly only smoked marijuana and it was on a daily basis. Sentence3: But when she turned 15 she was introduced to heroin. Sentence4: She became very addicted to heroin and almost died one night. Sentence5: The next morning she quit cold turkey and has been clean for 10 years.
[EX A]:
Ronnie