Group 1 - The article discusses the schedule changes for classes during the National Day holiday in China, specifically mentioning that classes will be held on Sunday as a make-up for Tuesday's class during the holiday week [1][2] - It clarifies that on October 11, the class schedule will follow the Week 5 Wednesday classes, advising students to check their timetables for specific courses [1][2] Group 2 - There are comments from users expressing surprise about having classes on Sunday and discussing the differences in holiday policies between China and foreign countries [3][7] - Some users share anecdotes about foreign colleagues being confused by China's holiday adjustment policies, highlighting cultural differences in work expectations [7][9]