How many Silver medals did nation who is ranked greater than 1 and has 4 Gold medals have?
CREATE TABLE "medal_table" (
  "rank" real,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT SUM("silver") FROM "medal_table" WHERE "rank">1 AND "gold"=4;