user: Question: What are the least losses of warrnambool with more than 6 wins and less than 630 against?
Columns: ['Club', 'Wins', 'Losses', 'Draws', 'Against']
Types: ['text', 'real', 'real', 'real', 'real']
Sample row: ['South Warrnambool', 6.0, 2.0, 0.0, 614.0]
SQL:

assistant: SELECT MIN("Losses") FROM "Table" WHERE "Against" < 630.0 AND "Club" = 'warrnambool' AND "Wins" > 6.0;