I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "Zhejiang is the home of Yueju (越劇), one of the most prominent forms of Chinese opera. Yueju originated in Shengzhou and is traditionally performed by actresses only, in both male and female roles. Other important opera traditions include Yongju (of Ningbo), Shaoju (of Shaoxing), Ouju (of Wenzhou), Wuju (of Jinhua), Taizhou Luantan (of Taizhou) and Zhuji Luantan (of Zhuji)."? 

What is Shaoju?