user: Question: Can you tell me the average Total that had the Silver of 0, and the Rank of 6, and the Gold smaller than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Turkey', 6.0, 0.0, 1.0, 7.0]
SQL:

assistant: SELECT AVG("Total") FROM "Table" WHERE "Silver" = 0.0 AND "Rank" = '6' AND "Gold" < 0.0;