With no explanation, label each line with "O", "other-medical", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
meant
that
in
contrast
to
flumazenil
,
which
is
ineffective
at
treating
alcohol
overdoses
,
Ro15-4513
showed
potential
as
a
useful
alcohol
antidote
.
This:O
meant:O
that:O
in:O
contrast:O
to:O
flumazenil:other-medical
,:O
which:O
is:O
ineffective:O
at:O
treating:O
alcohol:O
overdoses:O
,:O
Ro15-4513:other-medical
showed:O
potential:O
as:O
a:O
useful:O
alcohol:O
antidote:O
.:O