user: Question: What draws are the lowest when wins are larger than 18?
Columns: ['Mininera DFL', 'Wins', 'Byes', 'Losses', 'Draws', 'Against']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Penshurst', 18.0, 0.0, 0.0, 0.0, 905.0]
SQL:

assistant: SELECT MIN("Draws") FROM "Table" WHERE "Wins" > 18.0;