What is the lowest amount of losses the United States, ranked higher than 3 with more than 6 wins, have?
CREATE TABLE "pool_a" (
  "rank" real,
  "team" text,
  "wins" real,
  "losses" real,
  "runs_allowed" real,
  "run_ratio" real
);
SELECT MIN("losses") FROM "pool_a" WHERE "rank"<3 AND "team"='united states' AND "wins">6;