user: Question: What is the smallest silver that has a bronze less than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'United States (USA)', 2.0, 0.0, 0.0, 2.0]
SQL:

assistant: SELECT MIN("Silver") FROM "Table" WHERE "Bronze" < 0.0;