user: Question: What champion has North Melbourne as the runner-up?
Columns: ['Year', 'Champion', 'Runner-Up', 'Score', 'Venue']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1888.0, 'Norwood', 'South Melbourne', '3 games - 0', 'Kensington Oval, Adelaide']
SQL:

assistant: SELECT "Champion" FROM "Table" WHERE "Runner-Up" = 'North Melbourne';