41 educational services, namely, providing courses of instruction at university undergraduate, graduate, postdoctoral, extension and community education levels, and providing public lectures, workshops, seminars and conferences in the fields of medicine, dentistry, optometry, nursing, health professions, public health, education, engineering, business, biotechnology, informatics, life sciences, physical sciences, computer sciences, arts and humanities; entertainment services, namely, arranging and conducting sports exhibitions, theatrical productions, art exhibitions, musical concerts, and dance and ballet performances