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

<contact_type-simple>

<ordinal-sing> <contact_type_nom-sing>

<contact_type-sing-neutral>

<ordinal-sing> <contact_type_nom-sing-neutral>

<contact_type-point_id_type_none-simple>

<ordinal-sing> <contact_type_nom-point_id_type_none-sing>

<contact_type-point_id_type_none-sing-simple-neutral>

<ordinal-sing> <contact_type_nom-point_id_type_none-sing-neutral>

<contact_type>

<ordinal-sing> <contact_type_nom-point_id_type_none-sing>

<ordinal-sing> <contact_type_nom-sing>

<contact_type-point_id_type_none>

<ordinal-sing> <contact_type_nom-point_id_type_none-sing>

<contact_type-point_id_type_none-sing-neutral>

<ordinal-sing> <contact_type_nom-point_id_type_none-sing-neutral>