How many silvers for a school with 2 golds and over 2 total?
CREATE TABLE "percussion_scholastic_open_class" (
  "ensemble" text,
  "gold_medals" real,
  "silver_medals" real,
  "bronze_medals" real,
  "total_medals" real
);
SELECT "silver_medals" FROM "percussion_scholastic_open_class" WHERE "gold_medals"=2 AND "total_medals">2;