What is the average total medals of the soviet union, which has more than 2 bronze and more than 0 silver medals?
CREATE TABLE "medals_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT AVG("total") FROM "medals_table" WHERE "bronze">2 AND "silver">0 AND "nation"='soviet union';