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
Type
5
75
mm
tank
gun
was
a
variant
design
of
the
Type
4
75
mm
AA
gun
used
as
the
main
armament
on
the
Type
4
Chi-To
medium
tank
.
The:O
Type:product-weapon
5:product-weapon
75:product-weapon
mm:product-weapon
tank:product-weapon
gun:product-weapon
was:O
a:O
variant:O
design:O
of:O
the:O
Type:product-weapon
4:product-weapon
75:product-weapon
mm:product-weapon
AA:product-weapon
gun:product-weapon
used:O
as:O
the:O
main:O
armament:O
on:O
the:O
Type:product-weapon
4:product-weapon
Chi-To:product-weapon
medium:O
tank:O
.:O