The category "<tank_type-sing>" can be expressed as follows:

<tank_type-sing>

m1

m1a1

m1a2

m998

swa t72

swa t72 c2

swa t72 command

swa t72 command and control

swa t72 tank c2

swa t72 tank command

swa t72 tank command and control

swa t72-s

swa t72-s c2

swa t72-s command

swa t72-s command and control

t72

t72m

t80