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_78 (nation_of_citizenship VARCHAR, type_of_vehicle VARCHAR, year VARCHAR)
### Question:
What Nation of citizenship has a stock car vehicle with a year of 1999?
### Answer:
SELECT nation_of_citizenship FROM table_name_78 WHERE type_of_vehicle = "stock car" AND year = 1999