1. Mark was speeding on the highway when he and John had a car accident and suffered serious head injuries. As a result, John's memory was affected, and he could not remember any of the incidents on the day of the crash, including the fact that Mark's rash driving caused the car crash. At the hospital, Mark, who suffered minor injuries, convinces John that the crash was no one's fault and just bad luck. John is empathetic and signs a contract with Mark stating that neither party would sue the other for damages. However, Lily, who was with John in the car and was also injured, knows that Mark was responsible and challenges the contract in court, in addition to filing a lawsuit against Mark. Analyze the case.