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 ":".
The
artillery
regiments
consisted
of
four
artillery
groups
with
British
QF
25
pounder
guns
,
one
anti-tank
group
with
British
QF
17
pounder
guns
and
one
anti-air
group
armed
with
British
versions
of
the
Bofors
40mm
gun
.
The:O
artillery:O
regiments:O
consisted:O
of:O
four:O
artillery:O
groups:O
with:O
British:product-weapon
QF:product-weapon
25:product-weapon
pounder:product-weapon
guns:product-weapon
,:O
one:O
anti-tank:O
group:O
with:O
British:product-weapon
QF:product-weapon
17:product-weapon
pounder:product-weapon
guns:product-weapon
and:O
one:O
anti-air:O
group:O
armed:O
with:O
British:product-weapon
versions:product-weapon
of:product-weapon
the:product-weapon
Bofors:product-weapon
40mm:product-weapon
gun:product-weapon
.:O