41 Conducting entertainment exhibitions in the nature of athletic events and tournaments[, plays, concerts, lectures and educational performances, namely, film screenings, live music concerts, theater and dance productions, and book discussions; Educational services, namely, providing courses of instruction at the university undergraduate, graduate, and post-graduate levels and distribution of course material in connection therewith]; Entertainment and educational services in the nature of competitions in the field of [entertainment, education, culture,] sports, and other non-business and non-commercial fields[; Providing continuing and professional fire science, law enforcement, corrections and security management, emergency services, criminal justice, and intelligence education courses and distribution of course material in connection therewith]