The rules that use the category "<np-gapsout_null-gapsin_null-kind-not_wh_or_gq_or_dummy-sing>" are:

<existence_claim-inv-gapsout_null-gapsin_null>

<cop-sing> <np-gapsout_null-gapsin_null-kind-not_wh-sing> <np-gapsout_null-gapsin_null-kind-not_wh_or_gq_or_dummy-sing>

<existence_claim-not_inv-gapsout_null-gapsin_null>

<np-gapsout_null-gapsin_null-kind-dummy-sing> <verb_group-cop-sing> <np-gapsout_null-gapsin_null-kind-not_wh_or_gq_or_dummy-sing> <np-gapsout_null-gapsin_null-not_wh_or_dummy-sing>

<np-gapsout_null-gapsin_null-kind-dummy-sing> <verb_group-cop-sing> <np-gapsout_null-gapsin_null-kind-not_wh_or_gq_or_dummy-sing> <np-gapsout_null-gapsin_null-not_wh_or_gq_or_dummy-sing>

<np-gapsout_null-gapsin_null-kind-not_wh-sing> <verb_group-cop-sing> <np-gapsout_null-gapsin_null-kind-not_wh_or_gq_or_dummy-sing>