user: Question: What is the total number of bronze medals for the team with more than 4 silver and less than 30 gold medals?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['text', 'text', 'real', 'real', 'real', 'real']
Sample row: ['1', 'USSR', 13.0, 10.0, 2.0, 25.0]
SQL:

assistant: SELECT SUM("Bronze") FROM "Table" WHERE "Silver" > 4.0 AND "Nation" = 'total' AND "Gold" < 30.0;