user: Question: What is the leowest number of Bronze medals for jamaica who ranked less than 4 and had more than 0 silver medals and a total of less than 22 medals?
Columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']
Types: ['real', 'text', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'Cuba', 22.0, 19.0, 10.0, 51.0]
SQL:

assistant: SELECT MIN("Bronze") FROM "Table" WHERE "Silver" > 0.0 AND "Rank" < 4.0 AND "Nation" = 'jamaica' AND "Total" < 22.0;