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

<i_f_v-sing>

opfor armored personnel carrier

swa armored personnel carrier

<i_f_v-pl>

opfor armored personnel carriers

swa armored personnel carriers

<specific_vehicle_type-pl>

armored personnel carrier ambulances

<specific_vehicle_type-sing>

armored personnel carrier ambulance

<i_f_v>

opfor armored personnel carrier

opfor armored personnel carriers

swa armored personnel carrier

swa armored personnel carriers

<specific_vehicle_type-not_creatable-pl>

armored personnel carrier ambulances

<specific_vehicle_type-creatable-sing>

armored personnel carrier ambulance

<specific_vehicle_type-not_creatable-sing>

armored personnel carrier ambulance

<specific_vehicle_type-not_creatable>

armored personnel carrier ambulance

armored personnel carrier ambulances