instruction: What upper-level CHEM classes are being offered this Spring ?
response: SELECT DISTINCT course.department, course.name, course.number FROM course, course_offering, program_course, semester WHERE course.course_id = course_offering.course_id AND course.department = 'CHEM' AND program_course.category LIKE '%ULCS%' AND program_course.course_id = course.course_id AND semester.semester = 'Spring' AND semester.semester_id = course_offering.semester AND semester.year = 2016