With no explanation, label each line with "O", "other-chemicalthing", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
Such
a
difference
is
largely
due
to
benzodiazepine
activity
as
a
neuroreceptor
modulator
,
and
not
as
an
activator
per
se
.
Such:O
a:O
difference:O
is:O
largely:O
due:O
to:O
benzodiazepine:other-chemicalthing
activity:O
as:O
a:O
neuroreceptor:O
modulator:O
,:O
and:O
not:O
as:O
an:O
activator:O
per:O
se:O
.:O