Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: What is Roberto's relation to Bobby? Movie plot title: The Waterboy Movie plot: Bobby Boucher (Adam Sandler) is a socially inept, 31-year-old water boy with a stutter and hidden anger issues due to constant teasing by his peers and excessive sheltering by his mother, Helen (Kathy Bates). As a teenager, Bobby became the water boy for the (fictional) University of Louisiana Cougars, a major championship-caliber college program,[3] after being told his father died of dehydration in the Sahara while serving in the Peace Corps. However, the players always torment him and the team's head coach, Red Beaulieu (Jerry Reed), eventually fires him for "disrupting" the team's practices (in actuality, the coach had fired Bobby because he's too weak for his team to bully). Bobby then approaches Coach Klein (Henry Winkler) of the far more austere South Central Louisiana State University Mud Dogs and asks to work as the team's water boy. Coach Klein has been coach of SCLSU for years without success. It is revealed later in the movie that he and Beaulieu were assistant coaches at the University of Louisiana, but Beaulieu bullied Klein into letting him take sole credit for a playbook (that Klein actually came up with on his own) to earn the head coach job and then immediately fired Klein. The experience drove Klein to a mental breakdown and rendered him unable to come up with new plays. Furthermore, unlike the Cougars, the Mud Dogs are a struggling team both on and off the field. They have lost 40 consecutive games, their cheerleaders have become alcoholics, and players are forced to share equipment. Bobby insists he be the waterboy after seeing a keg of heavily polluted water that coach Klein had been offering his players. Klein, despite being impressed with a sample of Bobby's water, tells him he cannot hire anybody due to the team's financial issues, but Bobby agrees to work for free. Bobby's mother tells him of the evils of football (which she calls "foosball") and forbids him to play. She also mentions that unlike everyone else who shows contempt for him, Helen is the only one who unconditionally...
The answer to this question is:
Father