user: Question: Tell me the average bronze for total less than 4 and silver more than 0
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Italy', 29.0, 28.0, 28.0, 85.0]
SQL:

assistant: SELECT AVG("Bronze") FROM "Table" WHERE "Total" < 4.0 AND "Silver" > 0.0;