user: Question: What is the average for silver when bronze is less than 1, and gold is more than 0?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Australia', 3.0, 1.0, 1.0, 5.0]
SQL:

assistant: SELECT AVG("Silver") FROM "Table" WHERE "Bronze" < 1.0 AND "Gold" > 0.0;