Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
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?

### Inputs:
table_name: table, columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']

### Response:
SELECT MIN Bronze FROM table WHERE Silver > 0 AND Rank < 4 AND Nation = jamaica AND Total < 22