user: Question: What is the number of Silver medals with 2 Bronze and 0 Gold?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Algeria', 8.0, 3.0, 5.0, 16.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Bronze" = 2.0 AND "Gold" < 0.0;