Which Nation has a Gold larger than 0, and a Total larger than 4, and a Rank of 6?
CREATE TABLE "medal_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT "nation" FROM "medal_table" WHERE "gold">0 AND "total">4 AND "rank"='6';