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 ":".
Preserved
examples
of
ball
projectiles
range
from
.
Preserved:O
examples:O
of:O
ball:O
projectiles:O
range:O
from:O
.:O