41 entertainment and educational services, namely, providing courses of instruction at the college and post-graduate levels; and organization and sponsorship of sporting events, namely, baseball, basketball, cross country, field hockey, football, gymnastics, ice hockey, lacrosse, skiing, soccer, softball, swimming, tennis, track and field, volleyball, and water polo competitions; and conducting exhibitions in the nature of concerts, plays, musicals, recitals, dance exhibitions, workshops, symposia, lectures, seminars, colloquia, and art exhibits