With no explanation, label each line with "other-disease", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
However
,
untreated
persistent
hypoglycemia
can
lead
to
permanent
brain
damage
.
However:O
,:O
untreated:O
persistent:O
hypoglycemia:other-disease
can:O
lead:O
to:O
permanent:O
brain:O
damage:O
.:O