user: ### NOW ANSWER:
Question: What is the fewest number of silvers have 0 golds?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Soviet Union', 11.0, 5.0, 2.0, 18.0]
SQL:

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