educational services, namely conducting classes, seminars, conferences and workshops on the subjects of meditation; Taoism; Zen Buddhism; the I Ching; theoretical medicine; natural pharmacology; oriental healing arts; Chinese, Japanese, Korean, Philippine and Tibetan martial arts and weaponry; Qigung, namely a system of exercises practiced as part of a discipline to promote control of the body and mind; and Calligraphy; and entertainment in the nature of exhibitions and competitions in the fields of Chinese, Japanese, Korean, Philippine and Tibetan martial arts and weaponry