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

<n-sing-unit>

<unit_nom-sing>

<n-sing>

<unit_nom-sing>

<unit-gapsout_null-gapsin_null-sing>

<unit_nom-sing>

<unit-not_gesture-gapsout_null-gapsin_null-sing>

<unit_nom-sing>

<n-not_proper_name-sing>

<unit_nom-sing>

<unit-not_gesture-gapsout_pp_gap-gapsin_pp_gap-sing>

<unit_nom-sing>

<n-not_proper_name>

<unit_nom-sing>

<n-not_proper_name-unit>

<unit_nom-sing>

<n-not_proper_name-sing-unit>

<unit_nom-sing>

<unit-not_gesture-gapsout_np_gap-gapsin_np_gap-sing>

<unit_nom-sing>