CREATE TABLE table_name_8 (silver NUMBER, bronze VARCHAR2, gold VARCHAR2, nation VARCHAR2)

What is the average silver that has a gold greater than 3, with soviet union (urs) as the nation, and a bronze greater than 26?
SELECT AVG(silver) FROM table_name_8 WHERE gold > 3 AND nation = "soviet union (urs)" AND bronze > 26
SELECT AVG("silver") FROM "table_name_8" WHERE "bronze" > 26 AND "gold" > 3 AND "nation" = "soviet union (urs)"