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, dates VARCHAR)
### Question:
What is Class, when Dates is "22 April - 3 May 2009"?
### Answer:
SELECT class FROM table_name_20 WHERE dates = "22 april - 3 may 2009"