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 ":".
Botulinum
toxin
injected
into
the
pretarsal
orbicularis
oculi
muscle
has
been
shown
to
be
beneficial
in
some
cases
associated
with
orbicularis
oculi
contraction
or
blepharospasm
.
Botulinum:other-biologything
toxin:other-biologything
injected:O
into:O
the:O
pretarsal:other-biologything
orbicularis:other-biologything
oculi:other-biologything
muscle:O
has:O
been:O
shown:O
to:O
be:O
beneficial:O
in:O
some:O
cases:O
associated:O
with:O
orbicularis:O
oculi:O
contraction:O
or:O
blepharospasm:O
.:O