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_79 (circuit VARCHAR, winning_car VARCHAR, round VARCHAR)
### Question:
What circuit had an ensign n180 as the winning car in round 5?
### Answer:
SELECT circuit FROM table_name_79 WHERE winning_car = "ensign n180" AND round = 5