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_98 (chassis VARCHAR, year VARCHAR, engine VARCHAR)
### Question:
What is the Chassis from before 1997 with a Lamborghini v12 engine?
### Answer:
SELECT chassis FROM table_name_98 WHERE year < 1997 AND engine = "lamborghini v12"