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 .
Hong Kong
China
/location/administrative_division/country
China
Hong Kong
/location/country/administrative_divisions
China
Hong Kong
/location/location/contains
LOCATION
China
LOCATION
Hong Kong