The rules that use the vocabulary item "mlrs" are:

<i_f_v-sing>

bm21 mlrs

mlrs bm21

<i_f_v-pl>

mlrs bm21s

<specific_vehicle_type-sing>

mlrs

<i_f_v>

bm21 mlrs

mlrs bm21

mlrs bm21s

<specific_vehicle_type-creatable-sing>

mlrs

<specific_vehicle_type-not_creatable-sing>

mlrs

<specific_vehicle_type-not_creatable>

mlrs