Entertainment services, namely, ballet and dance performances, including multi-media presentations; personal appearances by dancers, choreographers, directors, arts administrators, management and other company personnel; providing a series of photographs and biographies in the field of dance via a global computer network; educational services, namely, dance training, conducting classes, seminars, conferences, workshops, and demonstrations in the fields of ballet, dance, the evolution of dance, choreography, [ yoga, ] physical therapy, nutrition, dance history, music theory, acting, arts administration, dance-related writing, research, and archival work; [ and providing facilities for dance instruction, ballet competitions, and classes; and rental of stage scenery and costumes ]