What is the highest number of bronze medals received by an ensemble who received fewer than 0 gold medals?
CREATE TABLE "percussion_scholastic_concert_world_clas" (
  "ensemble" text,
  "gold_medals" real,
  "silver_medals" real,
  "bronze_medals" real,
  "total_medals" real
);
SELECT MAX("bronze_medals") FROM "percussion_scholastic_concert_world_clas" WHERE "gold_medals"<0;