With no explanation, label each line with "O", "other-chemicalthing", "other-medical", "other-biologything", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Clomethiazole
acts
as
a
positive
allosteric
modulator
at
the
barbiturate
/
picrotoxin
site
of
the
GABAA
receptor
.
Clomethiazole:other-medical
acts:O
as:O
a:O
positive:O
allosteric:O
modulator:O
at:O
the:O
barbiturate:other-chemicalthing
/:O
picrotoxin:other-chemicalthing
site:O
of:O
the:O
GABAA:other-biologything
receptor:O
.:O