user: Question: What is the lowest silver that has 2 as the bronze, with a total greater than 4?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Germany', 3.0, 5.0, 4.0, 12.0]
SQL:

assistant: SELECT MIN("Silver") FROM "Table" WHERE "Bronze" = 2.0 AND "Total" > 4.0;