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 ":".
It
had
room
for
14
passengers
.
It:O
had:O
room:O
for:O
14:O
passengers:O
.:O