With no explanation, label each line with "O", "person-politician", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
This
period
can
be
further
divided
into
three
periods
:
the
time
of
the
apostles
to
the
death
of
Pope
Gelasius
I
(
A.D.
496
)
,
the
end
of
the
5th
century
to
the
spurious
collection
of
the
9th
century
,
and
the
last
up
to
the
time
of
Gratian
(
mid-12th
century
)
.
This:O
period:O
can:O
be:O
further:O
divided:O
into:O
three:O
periods:O
::O
the:O
time:O
of:O
the:O
apostles:O
to:O
the:O
death:O
of:O
Pope:person-politician
Gelasius:person-politician
I:person-politician
(:O
A.D.:O
496:O
):O
,:O
the:O
end:O
of:O
the:O
5th:O
century:O
to:O
the:O
spurious:O
collection:O
of:O
the:O
9th:O
century:O
,:O
and:O
the:O
last:O
up:O
to:O
the:O
time:O
of:O
Gratian:O
(:O
mid-12th:O
century:O
):O
.:O