user: Question: What is the sum of the ranks with a total of 1 and silver less than 0.
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Russia', 3.0, 1.0, 0.0, 4.0]
SQL:

assistant: SELECT SUM("Rank") FROM "Table" WHERE "Total" = 1.0 AND "Silver" < 0.0;