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_20 (class VARCHAR, date VARCHAR)
### Question:
What is the class of the race that takes place on August 25?
### Answer:
SELECT class FROM table_name_20 WHERE date = "august 25"