SEOUL, June 23: A South Korean court on Friday sentenced Choi Soon-sil, a confidant of ousted President Park Geun-hye, to three years in prison for demanding academic favours for her daughter, the first ruling related to a massive corruption scandal. The Seoul Central District Court found Choi guilty of obstruction of duty by exerting influence on Ewha Womans University to give undue favours to her 21-year-old daughter Chung Yoo-ra, using her ties with the former president, reports Yonhap News Agency.