user: Question: How many silvers for japan (1 gold)?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'United States', 0.0, 2.0, 3.0, 5.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Nation" = 'japan' AND "Gold" > 1.0;