The category "<np-gapsout_null-gapsin_null-enemy-not_wh_or_dummy-pl>" can be expressed as follows:
<np-gapsout_null-gapsin_null-enemy-not_wh_or_dummy-pl> <postnommod-enemy>
<pre_det> <np-not_mod-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy>