 Complete the following phrase:  Denisov also won twelve medals at the ICF Canoe Sprint World Championships with seven golds K-4 200 m: 1994, K-4 500 m: 1987, 1989, 1993, 1994, 1995; K-4 1000 m: 1994, three silvers K-4 200 m: 1995, K-4 500 m: 1985, 