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 ":".
Children
with
a
cleft
palate
are
also
prone
to
ear
infections
and
occasionally
swallowing
difficulties
.
Children:O
with:O
a:O
cleft:O
palate:O
are:O
also:O
prone:O
to:O
ear:O
infections:O
and:O
occasionally:O
swallowing:O
difficulties:O
.:O