Iran's traditional theatrical genres include Baqqāl-bāzi ("grocer play", a form of slapstick comedy), Ruhowzi (or ''Taxt-howzi'', comedy performed over a courtyard pool covered with boards), Siāh-bāzi (in which the central comedian appears in blackface), Sāye-bāzi (shadow play), Xeyme-šab-bāzi (marionette), and Arusak-bāzi (puppetry), and Ta'zie (religious tragedy plays).