With no explanation, label each line with "O", "product-weapon", "organization-other", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
The
assault
group
included
elements
of
103rd
HAA
Rgt
equipped
with
towed
3.7-inch
guns
and
93rd
LAA
Rgt
equipped
with
the
new
20
mm
Polsten
gun
in
triple
mountings
,
half
of
them
mounted
on
Crusader
tank
chassis
.
The:O
assault:O
group:O
included:O
elements:O
of:O
103rd:organization-other
HAA:organization-other
Rgt:organization-other
equipped:O
with:O
towed:product-weapon
3.7-inch:product-weapon
guns:product-weapon
and:O
93rd:organization-other
LAA:organization-other
Rgt:organization-other
equipped:O
with:O
the:O
new:O
20:product-weapon
mm:product-weapon
Polsten:product-weapon
gun:product-weapon
in:O
triple:O
mountings:O
,:O
half:O
of:O
them:O
mounted:O
on:O
Crusader:O
tank:O
chassis:O
.:O