user: Question: what is the least silver for germany when gold is more than 4?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Netherlands', 7.0, 3.0, 6.0, 15.0]
SQL:

assistant: SELECT MIN("Silver") FROM "Table" WHERE "Nation" = 'germany' AND "Gold" > 4.0;