user: ### NOW ANSWER:
Question: Name the sum of gold when Bronze is less than 0
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'United States', 0.0, 16.0, 14.0, 30.0]
SQL:

assistant: SELECT SUM("Gold") FROM "Table" WHERE "Bronze" < 0.0;