The rules that use the category "<unit-gapsout_null-gapsin_null>" are:

<cancel_operation-user_response-gapsout_null-gapsin_null>

<delete_verb> <unit-gapsout_null-gapsin_null>

<attach_unit_operation-gapsout_null-gapsin_null>

attach <unit-gapsout_null-gapsin_null> to <unit-gapsout_null-gapsin_null>

attach <unit-gapsout_null-gapsin_null> under <unit-gapsout_null-gapsin_null>

<cancel_operation-command-gapsout_null-gapsin_null>

<delete_verb> <unit-gapsout_null-gapsin_null>

<telegraphic_command>

<telegraphic_unit_command> for <unit-gapsout_null-gapsin_null>

<unit-gapsout_null-gapsin_null> <telegraphic_unit_command>

<development_command>

<unit-gapsout_null-gapsin_null> <debug_command>

<attach_unit_operation-gapsout_null-gapsin_np_gap>

attach to <unit-gapsout_null-gapsin_null>

attach under <unit-gapsout_null-gapsin_null>

<control_measure_clause>

<unit-gapsout_null-gapsin_null> <reach_verb> <engagement_loc-gapsout_null-gapsin_null>

<cancel_operation-system_utterance-gapsout_null-gapsin_null>

<delete_verb> <unit-gapsout_null-gapsin_null>

<name_operation-gapsout_null-gapsin_null>

<naming_verb> <unit-gapsout_null-gapsin_null> as <unit_call_sign-gapsout_null-gapsin_null>

<naming_verb> <unit-gapsout_null-gapsin_null> with new name <unit_call_sign-gapsout_null-gapsin_null>