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 ":".
Two
years
after
the
original
infection
the
person
will
enter
late
latent
syphilis
and
is
not
as
infectious
as
the
early
phase
.
Two:O
years:O
after:O
the:O
original:O
infection:O
the:O
person:O
will:O
enter:O
late:O
latent:O
syphilis:other-disease
and:O
is:O
not:O
as:O
infectious:O
as:O
the:O
early:O
phase:O
.:O