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?
CREATE TABLE "medal_table" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MIN("bronze") FROM "medal_table" WHERE "silver">0 AND "rank"<4 AND "nation"='jamaica' AND "total"<22;