With no explanation, label each line with "O", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart", "building-airport" or "building-hospital" preceded by ":".
In
1991
,
a
further
variant
of
the
MP5K
was
developed
,
designated
the
``
MP5K-PDW
``
(
PDW—Personal
Defense
Weapon
)
that
retained
the
compact
dimensions
of
the
MP5K
but
restored
the
fire
handling
characteristics
of
the
full-size
MP5A2
.
In:O
1991:O
,:O
a:O
further:O
variant:O
of:O
the:O
MP5K:product-weapon
was:O
developed:O
,:O
designated:O
the:O
``:O
MP5K-PDW:product-weapon
``:O
(:O
PDW—Personal:product-weapon
Defense:product-weapon
Weapon:product-weapon
):O
that:O
retained:O
the:O
compact:O
dimensions:O
of:O
the:O
MP5K:product-weapon
but:O
restored:O
the:O
fire:O
handling:O
characteristics:O
of:O
the:O
full-size:O
MP5A2:product-weapon
.:O