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 Staff (date_joined_staff VARCHAR, first_name VARCHAR, last_name VARCHAR)
### Question:
When did the staff member with first name as Janessa and last name as Sawayn join the company?
### Answer:
SELECT date_joined_staff FROM Staff WHERE first_name = "Janessa" AND last_name = "Sawayn"