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 ":".
The
attachment
of
TGF-β
to
the
LTBP
is
by
disulfide
bond
which
allows
it
to
remain
inactive
by
preventing
it
from
binding
to
its
receptors
.
The:O
attachment:O
of:O
TGF-β:other-biologything
to:O
the:O
LTBP:other-biologything
is:O
by:O
disulfide:O
bond:O
which:O
allows:O
it:O
to:O
remain:O
inactive:O
by:O
preventing:O
it:O
from:O
binding:O
to:O
its:O
receptors:O
.:O