What is the lowest silver that has 2 as the bronze, with a total greater than 4?
CREATE TABLE "medals_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MIN("silver") FROM "medals_table" WHERE "bronze"=2 AND "total">4;