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 ":".
Today
,
the
students
train
in
state-of-the-art
glass-paneled
aircraft
.
Today:O
,:O
the:O
students:O
train:O
in:O
state-of-the-art:O
glass-paneled:O
aircraft:O
.:O