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_49 (silver INTEGER, total VARCHAR, nation VARCHAR)
### Question:
Name the  Silver that has a Total smaller than 2, and a Nation of south korea?
### Answer:
SELECT AVG(silver) FROM table_name_49 WHERE total < 2 AND nation = "south korea"