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 ":".
Thrombin
can
pass
the
blood-brain
barrier
,
destroying
neurons
and
potentially
causing
cerebral
edemas
.
Thrombin:other-biologything
can:O
pass:O
the:O
blood-brain:O
barrier:O
,:O
destroying:O
neurons:O
and:O
potentially:O
causing:O
cerebral:O
edemas:O
.:O