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_13 (class VARCHAR, race VARCHAR, length VARCHAR)
### Question:
What is the class of the Budweiser Grand Prix of Miami race with a length of 3 hours?
### Answer:
SELECT class FROM table_name_13 WHERE race = "budweiser grand prix of miami" AND length = "3 hours"