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
has
been
reengineered
to
make
it
smaller
and
lighter
than
its
parent
firearm
,
and
is
marketed
as
a
``
short-action
1911
''
.
It:O
has:O
been:O
reengineered:O
to:O
make:O
it:O
smaller:O
and:O
lighter:O
than:O
its:O
parent:O
firearm:O
,:O
and:O
is:O
marketed:O
as:O
a:O
``:O
short-action:O
1911:O
'':O
.:O