sentences:  At the time this was thought to be because of a heart problem.A ceremony in his honour was held in Ulaanbaatar at the end of 2006, attended by the Mongolian Prime Minister, who thanked him for strengthening the ties between Mongolia and Japan.Kyokushūzan's "danpatsu-shiki", the official retirement ceremony where the retired "rikishi's" topknot is cut off, was reportedly going to be held in Mongolia, but eventually took place at the Ryōgoku Kokugikan in Tokyo on June 2, 2007.