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_37 (gold INTEGER, nation VARCHAR, total VARCHAR)
### Question:
How much Gold has a Nation of mongolia, and a Total larger than 18?
### Answer:
SELECT SUM(gold) FROM table_name_37 WHERE nation = "mongolia" AND total > 18