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 ":".
These
patients
exhibit
brittle
hair
,
nails
,
scaly
skin
,
and
hearing
loss
–
characteristics
associated
with
simple
human
aging
.
These:O
patients:O
exhibit:O
brittle:O
hair:O
,:O
nails:O
,:O
scaly:O
skin:O
,:O
and:O
hearing:O
loss:O
–:O
characteristics:O
associated:O
with:O
simple:O
human:O
aging:O
.:O