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 ":".
On
January
17th
,
2014
,
the
airlines
ceased
all
operations
.
On:O
January:O
17th:O
,:O
2014:O
,:O
the:O
airlines:O
ceased:O
all:O
operations:O
.:O