Nor are any fences visible , like the barrier under construction near China 's busiest border crossing at the city of Dandong .
China /location/location/contains Dandong
CC VBP DT NNS JJ , IN DT NN IN NN IN NNP POS JJS NN VBG IN DT NN IN NNP .
China
LOCATION
Dandong
LOCATION
/location/location/contains