What is the total number of silvers associated with 3 bronzes, a total over 6, and a rank of 3?
CREATE TABLE "medal_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT COUNT("silver") FROM "medal_table" WHERE "bronze"=3 AND "rank"='3' AND "total">6;