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

<vehicle_id-not_creatable>

<vehicle_type-sing> <id_num-sing>

<battalion_id-not_creatable-sing>

<battalion_type-sing> <id_num-sing>

<bare_company_id>

<company_noun-sing> <id_num-sing>

<platoon_id-not_creatable-sing>

<platoon_type-sing> <id_num-sing>

<aircraft_id-not_creatable-sing>

<aircraft_type-sing> <id_num-sing>

<bare_squad_id>

<squad_noun-sing> <id_num-sing>

<company_id-not_creatable>

<company_type-sing> <id_num-sing>

<aircraft_id-not_creatable>

<aircraft_type-sing> <id_num-sing>

<atf_id-not_creatable>

<atf_type-sing> <id_num-sing>

<squad_id-not_creatable-sing>

<squad_type-sing> <id_num-sing>

<bare_landing_force_id>

<landing_force_noun-sing> <id_num-sing>

<team_id-not_creatable-sing>

<team_type-sing> <id_num-sing>

<section_id-not_creatable>

<section_type-sing> <id_num-sing>

<bare_platoon_id>

<platoon_noun-sing> <id_num-sing>

<bare_flight_id>

<flight_noun-sing> <id_num-sing>

<section_id-not_creatable-sing>

<section_type-sing> <id_num-sing>

<bare_vehicle_id>

<aircraft_type-sing> <id_num-sing>

<vehicle_type-sing> <id_num-sing>

<squad_id-not_creatable>

<squad_type-sing> <id_num-sing>

<bare_platoon_id-sing>

<platoon_noun-sing> <id_num-sing>

<bare_team_id>

<team_noun-sing> <id_num-sing>

<landing_force_id-not_creatable-sing>

<landing_force_type-sing> <id_num-sing>

<bare_company_id-sing>

<company_noun-sing> <id_num-sing>

<flight_id-not_creatable-sing>

<flight_type-sing> <id_num-sing>

<bare_section_id>

<section_noun-sing> <id_num-sing>

<battalion_id-not_creatable>

<battalion_type-sing> <id_num-sing>

<bare_section_id-sing>

<section_noun-sing> <id_num-sing>

<bare_atf_id>

<atf_noun-sing> <id_num-sing>

<atf_id-not_creatable-sing>

<atf_type-sing> <id_num-sing>

<platoon_id-not_creatable>

<platoon_type-sing> <id_num-sing>

<company_id-not_creatable-sing>

<company_type-sing> <id_num-sing>

<bare_squad_id-sing>

<squad_noun-sing> <id_num-sing>

<team_id-not_creatable>

<team_type-sing> <id_num-sing>

<landing_force_id-not_creatable>

<landing_force_type-sing> <id_num-sing>

<vehicle_id-not_creatable-sing>

<vehicle_type-sing> <id_num-sing>

<flight_id-not_creatable>

<flight_type-sing> <id_num-sing>