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_1 (silver INTEGER, nation VARCHAR, bronze VARCHAR)
### Question:
Which Silver has a Nation of total, and a Bronze smaller than 18?
### Answer:
SELECT MAX(silver) FROM table_name_1 WHERE nation = "total" AND bronze < 18