Task: Question Generation
Input (English): Passage: A cowboy riding alone in Utah witnesses a stampede of wild stallions, one of whom particularly catches his eye. He returns the horse to its rightful owner, Julie Richards, owner of the Rocking R Ranch, introducing himself as Clint Barkley and asking for a job.
The wild horse, Smoky, slowly develops a relationship with Clint, but ranch foreman Jeff doesn't trust the new hired hand, who is vague and mysterious about his past. A stranger arrives named Frank and persuades a reluctant Clint to vouch for him to be hired as a wrangler.
It turns out Clint took the blame for a crime Frank committed and served eight months behind bars. Frank begins causing trouble at the ranch, mistreating Smoky and the other horses. A gambler turns up, seeking Clint's payment for a $200 debt, discovering that Frank actually lost the money and forged Clint's name on the IOU.
Frank rustles the horses and rides off. Jeff remains suspicious until Clint finally reveals that Frank is his brother. Smoky, abused again, fights off Frank and ends up killing him. Other cowboys discover the horse and sell him to a rodeo in Cheyenne. The horse's condition deteriorates and he ends up pulling a junk cart. One day Clint rides into town and Smoky recognizes him. They are reunited, and return to Julie and the ranch.
Output (English): What is the full name of the person who is vague and mysterious about their past?