user: Question: Who was the winner in the game that had Teikyo as the runner-up?
Columns: ['Title', 'Season', 'Winner', 'Score', 'Runner-up', 'Venue', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['30th', '1993-4 Details', 'Meiji', '41 – 12', 'Hosei', 'National Stadium, Tokyo , Tokyo', 'n/a']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Runner-up" = 'Teikyo';