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 ":".
The
coastal
sea
belt
is
a
rich
fishing
area
.
The:O
coastal:O
sea:O
belt:O
is:O
a:O
rich:O
fishing:O
area:O
.:O