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

<locate_unit-gapsout_null-gapsin_null>

<location_verb> <new_unit>

<create_unit-gapsout_null-gapsin_null>

<creation_verb> <new_unit>

<create_unit-gapsout_np_gap-gapsin_np_gap>

<creation_verb> <new_unit>

<locate_unit-gapsout_np_gap-gapsin_np_gap>

<location_verb> <new_unit>