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

<alternatives_query>

do you mean <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb3-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb4>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb8>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb4-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_command>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb5-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-discourse_system_utterance-air>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb1>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb5>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb9>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb6-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb7-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb2>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb6>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb8-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb1-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb9-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb3>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_nlb7>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_nlb2-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<utterance-last_state_command-discourse_user_response-air>

<use_verb> <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<wh_exclamative> about <np-gapsout_null-gapsin_null-not_wh_or_dummy>

<response_utterance-discourse_user_response-last_state_command>

<np-gapsout_null-gapsin_null-not_wh_or_dummy>