user: Question: What is the total when silver is more than 0, and bronze less than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Japan', 7.0, 0.0, 3.0, 10.0]
SQL:

assistant: SELECT SUM("Total") FROM "Table" WHERE "Silver" > 0.0 AND "Bronze" < 0.0;