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_17 (class VARCHAR, power VARCHAR)
### Question:
what is the class when the power is 22500 watts?
### Answer:
SELECT class FROM table_name_17 WHERE power = "22500 watts"