The rules that use the category "<platoon_type-sing>" are:

<platoon_id-not_creatable-sing>

<ordinal-sing> <platoon_type-sing>

<platoon_type-sing> <id_num-sing>

<platoon_id-not_creatable>

<ordinal-sing> <platoon_type-sing>

<platoon_type-sing> <id_num-sing>