user: Question: What is the sum of silver values that have bronze values under 4, golds over 2, and a rank of 3?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Japan', 9.0, 2.0, 4.0, 15.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Bronze" < 4.0 AND "Rank" = '3' AND "Gold" > 2.0;