user: Question: What is the number of silver where the rank is higher than 4 and bronze is smaller than 1?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Great Britain', 17.0, 10.0, 7.0, 34.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Rank" > 4.0 AND "Bronze" < 1.0;