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 ":".
In
recent
years
,
as
some
wrestling
fans
have
noticed
this
,
the
referee
may
sometimes
perform
the
symbol
in
an
attempt
to
indicate
a
kayfabe
injury
to
another
performer
,
which
will
lead
to
the
match
being
called
off
.
In:O
recent:O
years:O
,:O
as:O
some:O
wrestling:O
fans:O
have:O
noticed:O
this:O
,:O
the:O
referee:O
may:O
sometimes:O
perform:O
the:O
symbol:O
in:O
an:O
attempt:O
to:O
indicate:O
a:O
kayfabe:O
injury:O
to:O
another:O
performer:O
,:O
which:O
will:O
lead:O
to:O
the:O
match:O
being:O
called:O
off:O
.:O