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

<existence_claim-not_inv-gapsout_null-gapsin_null>

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

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

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

<np-gapsout_null-gapsin_null-np_type_null-dummy-pl> <verb_group-cop-pl> <np-gapsout_null-gapsin_null-np_type_null-not_wh_or_gq_or_dummy-pl> <np-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy-pl>