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.

Sentence1: Jeff is addicted to working out and he goes everyday. Sentence2: He just started a new job that has him working long hours. Sentence3: These long hours prevent him from being able to go to the gym. Sentence4: By the time Jeff gets off work the gym is closed. Sentence5: Jeff went out and bought all the stuff he needs to work out athome.
Jeff

Sentence1: Rick was at a restaurant. Sentence2: And he was curious about how all of the different items tasted. Sentence3: So he ordered way more than he could eat. Sentence4: And he forced himself to finish everything out of guilt. Sentence5: Rick tried to quell his curiosity the next time.
Rick

Sentence1: Jamal and Darnell were friends who both grew up in the ghetto. Sentence2: Jamal started dealing drugs, while Darnell worked hard in school. Sentence3: Darnell got a scholarship to a big university and moved away. Sentence4: Years later, Jamal got killed in a drug deal gone wrong. Sentence5: In Jamal's memory, Darnell founded a support group in the ghetto.
University, Darnell, Jamal, School, Ghetto