instruction: Is it always Prof. Aghapi Mordovanakis or Prof. Pj Mcgann who teaches SAC 440 ?
response: SELECT COUNT(*) = 0 FROM course, course_offering, instructor, offering_instructor WHERE (NOT instructor.name LIKE '%Aghapi Mordovanakis%' AND NOT instructor.name LIKE '%Pj Mcgann%') AND course.course_id = course_offering.course_id AND course.department = 'SAC' AND course.number = 440 AND offering_instructor.instructor_id = instructor.instructor_id AND offering_instructor.offering_id = course_offering.offering_id