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 ":".
It
develops
after
secondary
syphilis
and
is
divided
into
early
latent
and
late
latent
stages
.
It:O
develops:O
after:O
secondary:O
syphilis:other-disease
and:O
is:O
divided:O
into:O
early:O
latent:O
and:O
late:O
latent:O
stages:O
.:O