user: Question: Total larger than 3, and a Rank of 4, and a Silver larger than 0 has what average gold?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Japan', 6.0, 5.0, 4.0, 15.0]
SQL:

assistant: SELECT AVG("Gold") FROM "Table" WHERE "Total" > 3.0 AND "Rank" = '4' AND "Silver" > 0.0;