user: Question: What is the number of silver when rank was 5, and a bronze was smaller than 14?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'Russia', 155.0, 75.0, 62.0, 292.0]
SQL:

assistant: SELECT SUM("Silver") FROM "Table" WHERE "Rank" = '5' AND "Bronze" < 14.0;