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_69 (silver INTEGER, nation VARCHAR, gold VARCHAR)
### Question:
What is the least silver that has mexico as a nation and a gold less than 0?
### Answer:
SELECT MIN(silver) FROM table_name_69 WHERE nation = "mexico" AND gold < 0