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 ":".
Following
exit
13C
,
eastbound
US
90
Bus
.
Following:O
exit:O
13C:O
,:O
eastbound:O
US:O
90:O
Bus:O
.:O