Definition: In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.
Input: Passage: Forced to give up his land and his only home, cantankerous Texas rancher Red Bovie isn't about to go quietly to the dismal trailer park that's all he can now afford, and instead goes off with his grandson Gally (son of his long-estranged son Jimmy) for a road trip to Old Mexico. They pick up two hitch-hikers who have stolen over $150,000 in drug money. But after Red drives off without them, unbeknownst to him the money remains in the car. They arrive in Mexico, still pursued by the drug dealers, who are pursued in turn by another hit-man looking to recover the stolen money. Red and Gally enjoy the town's attractions during the Mexican festival of the dead. As night falls, they visit a brothel where Red dances with the madame. They later meet a singer named Patty Wafers who is down on her luck. She is immediately attracted to Red's fearless and outrageous behavior. Meanwhile, the hit-man kills the American drug dealers and is now in pursuit of Red. Red discovers the money and desires to keep it so that he can have a better life than the one promised by the trailer park. Patty tries to help them return undetected across the border with the money, but the hit-man catches up with them and takes it. They pursue him, then they pursue another hit-man who has taken the money in turn. As Red and Patty's affection grows, Red begins to lose interest, but Gally, seeking his identity after the death of his father, takes up the pursuit in his place. They eventually overpower the second hit man and recover the money. Patty invites Red to live with her in her small town where she was born in northern Mexico. He accepts and is happy to go with her, knowing that with $150,000, they will live like royalty. As they part ways and Gally returns to the U.S., Red tells Gally that he has "found himself a grandson".
Output:
What is the name of Gally's grandfather?