With no explanation, label each line with "O", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Ciliary
neurotrophic
factor
(
CNTF
)
is
a
cytosolic
protein
that
is
not
secreted
.
Ciliary:other-biologything
neurotrophic:other-biologything
factor:other-biologything
(:O
CNTF:other-biologything
):O
is:O
a:O
cytosolic:O
protein:O
that:O
is:O
not:O
secreted:O
.:O