Task: Question Answering
Input (English): Passage: In 1987 in Oklahoma, Danielle Edmondston is a troubled and promiscuous high school student. She argues with her mother, Sue-Ann, who is about to marry a Mormon, Ray, and amidst the chaos she befriends Clarke Walters, a shy, gay classmate. Together, they flee in a car owned by Clarke's homophobic father, Joseph, and embark on a road trip to Fresno, where Danielle expects to find her birth father, Danny Briggs. Meanwhile, Sue-Ann and Clarke's mother, Peggy, chase after them.
Joseph breaks into Danielle's house in an attempt to find Clarke, only to find that the entire family is gone in vacation, besides Danielle, who has already left with Clarke. Joseph is then arrested for breaking into the house. He calls Peggy to bail him out, only to find out that Peggy refuses to let him out and that she will not allow him to harm Clarke for being gay anymore. Joseph, aggravated, has to stay in the cell until a judge can see him.
On the way, Danielle and Clarke pick up a hitchhiker named Joel, who after they stop for rest, has sex with Clarke. Clarke awakens the next morning to find that he is gone, leaving him heartbroken. Clarke blames Danielle for this. After seemingly moving on and getting back in the car, it breaks down on the side of the road. Clarke and Danielle continue on foot, trying to rent a car, only to find Joseph has been released from prison and has reported their credit card stolen. Desperate for money, the two enter a bar and Danielle enters a stripping contest. After she is booed profusely, Clarke realizes that it is a biker gay bar. Danielle tells him he must strip instead. 
Question: What is the last name of the person who befriends Clarke?
Output (English): Edmondston.