All Anxi people are vegetarians, and all Zhenyuan people are ascetic, ascetic and vegetarian are incompatible, and Guo Shu is ascetic. This shows:. ['Guo Shu is from Zhenyuan.', 'Guo Shu is not from Zhenyuan.', 'Guo Shu is Anxi.', 'Guo Shu is not Anxi.']