generate questions: Jiangsu Province Kun Opera is one of the best theatres for Kunqu, China's oldest stage art. It is considered a conservative and traditional troupe. Nanjing also has professional opera troupes for the Yang, Yue (shaoxing), Xi and Jing (Chinese opera varieties) as well as Suzhou pingtan, spoken theatre and puppet theatre.
What is the name of China's oldest stage art? {sep_token} What is one of the best theatres for Kunqu? {sep_token} What type of troupe is Jiangsu Province Kun Opera considered to be? {sep_token} What other types of operas are performed in Nanjing? {sep_token} What other types of theater performance are seen in Nanjing?