Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_8 (silver INTEGER, bronze VARCHAR, gold VARCHAR, nation VARCHAR)
### Question:
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?
### Answer:
SELECT AVG(silver) FROM table_name_8 WHERE gold > 3 AND nation = "soviet union (urs)" AND bronze > 26