That was very informative. Thank you. 
 The vast majority of schools use Cantonese as the medium of instruction, with written education in Chinese and compulsory classes in mandarin. 
 Please give me more information. 
 Cool ! i'd like to know about its demographics. 
 What can you tell me about its education?
The vast majority of schools use Cantonese as the medium of instruction, with written education in Chinese and compulsory classes in mandarin.