With no explanation, label each line with "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport", "building-hospital" or "building-hotel" preceded by ":".
The
Seven
Seas
referred
to
those
seas
,
and
if
someone
had
sailed
the
Seven
Seas
it
meant
he
had
sailed
to
,
and
returned
from
,
the
other
side
of
the
world
.
The:O
Seven:O
Seas:O
referred:O
to:O
those:O
seas:O
,:O
and:O
if:O
someone:O
had:O
sailed:O
the:O
Seven:O
Seas:O
it:O
meant:O
he:O
had:O
sailed:O
to:O
,:O
and:O
returned:O
from:O
,:O
the:O
other:O
side:O
of:O
the:O
world:O
.:O