The rules that use the category "<group_contact_id>" are:

<contact_type-sing-neutral>

<group_contact_id>

<group_contact_id> <contact_type-point_id_type_none-sing-simple-neutral>

<contact_type-pl-neutral>

<group_contact_id> <contact_type-point_id_type_none-pl-simple-neutral>

<contact_type>

<group_contact_id>

<group_contact_id> <contact_type-point_id_type_none-simple>

<contact_type-point_id_type_none>

<group_contact_id>

<group_contact_id> <contact_type-point_id_type_none-simple>

<contact_type-point_id_type_none-pl-neutral>

<group_contact_id> <contact_type-point_id_type_none-pl-simple-neutral>

<contact_type-point_id_type_none-sing-neutral>

<group_contact_id>

<group_contact_id> <contact_type-point_id_type_none-sing-simple-neutral>