With no explanation, label each line with "building-other", "O", "organization-company", "product-weapon", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting" or "art-writtenart" preceded by ":".
Working
at
the
Winchester
plant
during
the
war
,
Browning
developed
the
final
design
of
the
Browning
Automatic
Rifle
(
BAR
)
,
of
which
it
produced
some
27,000
.
Working:O
at:O
the:O
Winchester:building-other
plant:O
during:O
the:O
war:O
,:O
Browning:organization-company
developed:O
the:O
final:O
design:O
of:O
the:O
Browning:product-weapon
Automatic:product-weapon
Rifle:product-weapon
(:O
BAR:product-weapon
):O
,:O
of:O
which:O
it:O
produced:O
some:O
27,000:O
.:O