instruction: Regarding classes with labs , which professors do not teach them ?
response: SELECT DISTINCT instructor.name FROM instructor, course, course_offering, offering_instructor WHERE course.course_id = course_offering.course_id AND course.department = 'EECS' AND course_offering.offering_id = offering_instructor.offering_id AND instructor.instructor_id = offering_instructor.instructor_id AND NOT instructor.instructor_id IN (SELECT DISTINCT offering_instructor.instructor_id FROM course AS COURSEalias0, course_offering AS COURSE_OFFERINGalias0, offering_instructor AS OFFERING_INSTRUCTOR WHERE COURSEalias0.course_id = COURSE_OFFERINGalias0.course_id AND COURSEalias0.has_lab = 'Y' AND COURSE_OFFERINGalias0.offering_id = offering_instructor.offering_id)