With no explanation, label each line with "product-other", "O", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
The
story
revolves
around
the
Twelve
Swords
of
Power
,
which
were
forged
by
the
gods
and
given
to
humanity
,
and
how
various
characters
acquire
and
use
them
.
The:O
story:O
revolves:O
around:O
the:O
Twelve:product-other
Swords:product-other
of:product-other
Power:product-other
,:O
which:O
were:O
forged:O
by:O
the:O
gods:O
and:O
given:O
to:O
humanity:O
,:O
and:O
how:O
various:O
characters:O
acquire:O
and:O
use:O
them:O
.:O