A senior law enforcement official in Brussels said Belgium was on high alert . ''
Belgium /location/country/capital Brussels
Brussels /location/administrative_division/country Belgium
Belgium /location/location/contains Brussels
Belgium /location/country/administrative_divisions Brussels
DT JJ NN NN NN IN NNP VBD NNP VBD IN JJ NN . ''
Belgium
LOCATION
Brussels
LOCATION
/location/country/capital
Brussels
LOCATION
Belgium
LOCATION
/location/administrative_division/country
Belgium
LOCATION
Brussels
LOCATION
/location/location/contains
Belgium
LOCATION
Brussels
LOCATION
/location/country/administrative_divisions