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 ":".
It
is
explained
that
the
Beyonders
were
the
originators
of
reality
,
but
eventually
became
harbingers
of
destruction
.
It:O
is:O
explained:O
that:O
the:O
Beyonders:O
were:O
the:O
originators:O
of:O
reality:O
,:O
but:O
eventually:O
became:O
harbingers:O
of:O
destruction:O
.:O