user: Question: How many bronze medals did the nation have that had less than 3 silver, 5 gold and ranked better than 31?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'USSR', 112.0, 85.0, 58.0, 255.0]
SQL:

assistant: SELECT SUM("Bronze") FROM "Table" WHERE "Silver" < 3.0 AND "Rank" < 31.0 AND "Gold" = 5.0;