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_70 (year VARCHAR, engine VARCHAR, chassis VARCHAR)
### Question:
In what year did a car have a yamaha v12 engine and a brabham bt60y chassis
### Answer:
SELECT year FROM table_name_70 WHERE engine = "yamaha v12" AND chassis = "brabham bt60y"