21628
 But with very few exceptions , China has banned Hong Kong 's pro-democracy politicians from crossing the border ever since June 4 , 1989 , when many of them outspokenly denounced the Chinese Communist Party for the Tiananmen Square killings . 
 administrative division of country: Hong Kong, China; country of administrative divisions: China, Hong Kong
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 administrative division of country: Hong Kong, China; country of administrative divisions: China, Hong Kong