user: Question: How many bronze medals for the united kingdom when the silver was less than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Hungary', 7.0, 3.0, 1.0, 11.0]
SQL:

assistant: SELECT SUM("Bronze") FROM "Table" WHERE "Nation" = 'united kingdom' AND "Silver" < 0.0;