CREATE TABLE staff_department_assignments (staff_id VARCHAR(255), job_title_code VARCHAR(255)); CREATE TABLE staff (staff_id VARCHAR(255), staff_gender VARCHAR(255))
What are the staff ids and genders of all staffs whose job title is Department Manager?
    
SQL: SELECT T1.staff_id, T1.staff_gender FROM staff AS T1 JOIN staff_department_assignments AS T2 ON T1.staff_id = T2.staff_id WHERE T2.job_title_code = "Department Manager"