user: Question: Which silver has a Gold larger than 4, and a Rank of 1?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Russia', 10.0, 7.0, 8.0, 25.0]
SQL:

assistant: SELECT "Silver" FROM "Table" WHERE "Gold" > 4.0 AND "Rank" = 1.0;