what is the sum of bronze when the rank is 5, the nation is poland and gold is less than 0?
CREATE TABLE "medal_table" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT SUM("bronze") FROM "medal_table" WHERE "rank"=5 AND "nation"='poland' AND "gold"<0;