The rules that use the category "<np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>" are:

<other_unit-system_utterance-gapsout_pp_gap-gapsin_pp_gap>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-system_utterance-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-system_utterance-controlled_unit-gapsout_np_gap-gapsin_np_gap>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<existence_claim-inv-gapsout_null-gapsin_null>

<cop-pl> <np-gapsout_null-gapsin_null-orientation-not_wh-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<existence_claim-not_inv-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-orientation-dummy-pl> <verb_group-cop-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl> <np-gapsout_null-gapsin_null-not_wh_or_dummy-pl>

<np-gapsout_null-gapsin_null-orientation-dummy-pl> <verb_group-cop-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl> <np-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy-pl>

<np-gapsout_null-gapsin_null-orientation-not_wh-pl> <verb_group-cop-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-system_utterance-controlled_unit-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-controlled_unit-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>

<other_unit-system_utterance-gapsout_np_gap-gapsin_np_gap>

<np-gapsout_null-gapsin_null-orientation-pl> <np-gapsout_null-gapsin_null-orientation-not_wh_or_dummy-pl>