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

<unit-gapsout_null-gapsin_null-sing>

<det-sing-def> <unit_nom-not_det-sing>

<det-sing-deictic> <unit_nom-not_det-sing>

<unit-gapsout_null-gapsin_null>

<det-sing-def> <unit_nom-not_det-sing>

<det-sing-deictic> <unit_nom-not_det-sing>