With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
Over
100
countries
import
and
export
goods
through
the
port
.
Over:O
100:O
countries:O
import:O
and:O
export:O
goods:O
through:O
the:O
port:O
.:O